Attributions

Before its recent rediscovery, this compelling biblical landscape was documented in a preparatory drawing by Rembrandt (c. 1630), used by J. G. van Vliet for a reproduction print in 1631, and was acquired directly from Rembrandt and reproduced by Claude Vignon in 1641. It later resurfaced at auctions in Amsterdam (1695) and Christie’s London (1798, 1973), catalogued as Rembrandt, before falling into obscurity. Its reattribution process began in 2019, provisionally proposed as a work by Rembrandt and his studio by Gary Schwartz and Christian Vogelaar. Since 2023, based on comprehensive documentary evidence, stylistic evaluation, and scientific analysis, the work has been attributed to Rembrandt van Rijn himself by Gary Schwartz, Prof. Dr Volker Manuth, and Ger Luijten and substantiated by Ernst van de Wetering’s authoritative writings.
(As is frequently the case with works from Rembrandt’s later Leiden period onward, the possibility of minor workshop participation cannot be totally excluded.)

The Baptism of the Eunuch by Rembrandt, ca. 1630, is exceptionally well-documented compared to many other paintings of his œuvre.

How did key insights provided by Ernst van de Wetering lead to the rediscovery of a lost painting?

Ernst van de Wetering outlines the criteria for rediscovering Rembrandt’s lost Baptism of the Eunuch (1630), emphasizing its direct relationship and resemblance to The Head of the Old Man in a Cap alongside Saint Philip, as well as motifs reproduced in J.G. van Vliet’s engraving: “Sometimes traces of such paintings remain, for example in written descriptions from the past, or in copies or reproduction prints” […] “There is probably another trace of the same painting: a rapidly painted head, done in broad strokes, of an old man bending forward. […] an oil sketch for the head of the apostle Philip who is baptizing the rich Moorish courtier whom he was converted to Christianity.” (A Life in 180 Paintings, p. 46, “Missing paintings”, Local World BV, 2008).

Ernst van de Wetering, A Life in 180 Paintings, Local World BV, 2008. p. 46, a page dedicated to the Baptism of the Eunuch ca.1630 by Rembrandt.

Head of an Old Man in a Cap (c. 1630) and the head of Saint Philip in the present painting exhibit the same painterly touch, further reproduced by Van Vliet’s faithful etched detail.

Detail of Head of the Old Man in a Cap c. 1630 (head size 14 cm x 8 cm) Oil on panel, 24.3 × 20.3 cm, Kingston, Ontario, Agnes Etherington Art Centre, Queen’s University, 2003 (46-031). Image coutesy of the Agnes Etherington Art Centre.
Detail of Philip’s head of the present painting ca. 1630 (head size 9 cm x 5 cm).
Detail of Vliet’s print 1631.

According to van de Wetering, in Corpus IV, The Self-Portraits, Dordrecht, Springer, 2005,  p. 628: “It is most likely that the present painting (The Head of the Old Man in a Cap) served as an oil sketch with an eye to the (now lost) Baptism of the Eunuch, a print of which was made in 1631, also by van Vliet.” At the time the Baptism of the Eunuch, ca. 1630 was thought to be lost; it only reappeared in 2019.

For the first time, Rembrandt chose the engraver J. G. van Vliet to execute a printed reproduction of one of his favourite compositions, The Baptism of the Eunuch, as confirmed by the inscription at the bottom of the plate.

Detail of the inscription on Vliet’s etching stating Rembrandt as the inventor: “RH v.Rijn inv. JG.v. Vliet fec.1631”.

“Van Vliet’s indication on the print after Oil study of an old man in a cap, c. 1630, that Rembrandt was the ‘inventor’ of the image concerned, should in my view be accepted as sound evidence that this painting (and the other paintings copied by Van Vliet) must have been from Rembrandt’s hand.” E. v. d. Wetering, Corpus VI , Chapter I, What is a Rembrandt ? A personal account, p. 41

Print copies after Rembrandt

There are two contemporaneous print copies of the painting in different formats, both bearing the inscription “Rembrandt invent”: J.G. van Vliet’s engraving from 1631 and C. J. Visscher’s engraving from 1631-1641.

Johannes Gillis van Vliet after Rembrandt, The baptism of the eunuch, inscribed RH v.Rijn inv. JG.v. Vliet fec. 1631, Etching and engraving on paper, 59.2 x 49.1 cm, Amsterdam, Rijksmuseum, RP-P-OB-33.389. Image coutesy of the Rijksmuseum.
Visscher's Baptism of the Eunuch
Claes Jansz Visscher after Rembrandt, The baptism of the eunuch, 1631-1641, inscribed Rembrandt invent. and CIVißcher Excudebat. Engraving, 37.9 × 51.5 cm Rotterdam, Museum Boijmans van Beuningen, L 2014/1 b 109 (PK). Image coutesy of the Museum Boijmans van Beuningen.

The existence of two copies in differing formats, each bearing the inscription “invented by Rembrandt,” initially raises questions about the original composition.

Gary Schwartz, in analyzing the reproduction prints by Vliet and Visscher, notes that “their compositions too are cut off at just the same point […] because both prints were copied after this particular painting.” He further contends that “the model for the prints was not a hypothetical lost original by Rembrandt, but the existing painting here presented” (A Rembrandt Invention: A New Baptism of the Eunuch, 2020, p. 67).

The evident anomalies in J. G. Van Vliet’s print, together with a comparative analysis of the etchings, an intermediate drawing, and a related engraving by Rembrandt, support the conclusive determination that the original composition was conceived in a horizontal format — and that this painting served as its model.

 Understanding the composition

Visscher’s reproduction print: similarities, differences and clumsiness.

The Baptism of the Eunuch, Rembrandt ca.1630.
C. J. Visscher’s engraving after Rembrandt’s Baptism of the Eunuch 1631-1641.

The format and the interplay of gazes are comparable to those in the painting, and the figures recall those in Van Vliet’s version. The principal difference between this painting and Visscher’s copy lies in the markedly different depiction of the baptismal act, with Philip raising his left index finger in the print. This gesture, in which Philip appears to administer the baptism himself, may evoke The Baptism of the Eunuch by Abraham Bloemaert (1620–1625).

Visscher arranged his scenario to achieve a meaningful double page version by sacrificing the transitional landscape we find in the painting. However, it produced disproportionate figures, while the present painting demonstrates accurate and harmonious proportions.

Unlike Vliet’s print, and arranged as in the present painting, the figures in the eunuch’s entourage are all focused on protecting the eunuch, looking either at the baptism or at the viewer, except for the commanding horseman gazing into the void.

Vliet’s reproduction print.

The Baptism of the Eunuch, Rembrandt ca.1630.
Johannes Gillis van Vliet after Rembrandt, The baptism of the eunuch, inscribed RH v.Rijn inv. JG.v. Vliet fec. 1631, Etching and engraving on paper, 59.2 x 49.1 cm, Amsterdam, Rijksmuseum, RP-P-OB-33.389.

As expected, J.G. van Vliet is predominantly faithful to Rembrandt’s models.

Philip and the Eunuch and the entourage in the present painting, and in Van Vliet’s print.

Gary Schwartz cites in his book “The essential factor here is the sum total of the motifs, and not the way they are set out in the composition.” J. Bruyn, op. cit. (note 32), p. 53. See also Schuckman, Royalton-Kisch and Hinterding, op. cit. (note 28), p. 45.

“[…] The arguments for regarding the present painting as van Vliet’s model are not to be denied.” Gary Schwartz, A Rembrandt Invention: a new baptism of the eunuch, 2020, p. 69.

A closer examination of Van Vliet’s work reveals anomalies inheritated from the crude change of composition.

The inconsistency of the gazes of the entourage.

The gazes of the entourage are disconnected from the main scene, which is unusual in Rembrandt’s overall œuvre. They cannot fulfill their duty of protection of the dignitary Ethiopian.

Coherent ocular interplay in the Baptism of the Eunuch by Rembrandt, ca. 1630.
Detail of the entourage in the Baptism of the Eunuch by Van Vliet, 1631.

Five of the six figures surrounding the eunuch exhibit a pronounced strabismus.

Detail of the entourage in the Baptism of the Eunuch by Van Vliet, 1631.

Looking closely at the faces of the entourage, we notice that Vliet struggled to reorganise the gazes of the characters by reorienting the eyes directions.

None of the characters seems concerned by the sacred act that is taking place before their eyes. Only the animals are in alert but looking toward the foliage rather than the scene.

According to Gary Schwartz in A Rembrandt invention: a new Baptism of the eunuch, 2020, “the auxiliary figures are all looking in the wrong direction. The gazes of the rider and the rest of the entourage make perfect sense in the horizontal painting and perfect nonsense in van Vliet’s vertical print.”

All the painted copies in vertical composition exhibit the same anomalies, sometimes even worse, clearly proving that they are copies of Van Vliet’s engraving and not of the 1630 painting (see below in “copies of Vliet’s engraving after Rembrandt”).

A troublesome iconography detail.

A troubling iconographic detail: the genitals of the horse on Saint Philip’s head.

This anomaly is another strong indication of the unfortunate side effect caused by the abrupt change in format.

Detail of Saint Philip’s head and the horse’s genitals in the Baptism of the Eunuch by Van Vliet, 1631.

The anomalies found in Vliet’s engraving indicate a change in format which requiered adaptations that Vliet could not resolve on his own.

 The discovery of a Rembrandt drawing revealed their link and a deliberate change in format.

Rembrandt, The baptism of the eunuch, ca. 1630, black chalk on paper, 19.2 × 21.1 cm, Munich, Graphische Sammlung, 1453. Image coutesy of the Graphische Sammlung.

Rembrandt probably made this drawing to explain to Van Vliet how he could adjust the format.

The faces of the eunuch’s entourage are only roughly sketched. The facial expressions remain indistinct. This absence of head’s expression can explain the anomalies in Van Vliet’s work, as he didn’t have the proper material to align the heads of the figures surrounding the eunuch toward the main scene.

At the time, Rembrandt and Vliet were in Leiden, and Rembrandt likely produced the drawing quickly to guide Vliet in reformatting it. By 1631, however, Rembrandt’s frequent travels between Leiden and Amsterdam likely hindered his supervision, leading to inconsistencies in the engraving. Vliet repositioned the eunuch’s entourage above Philip and the eunuch, replicating their poses but failing to incline their gazes toward the central scene—a departure from Rembrandt’s typical vertical compositions. His clumsy attempt to recenter the gazes resulted in pronounced strabismus and inappropriate juxtaposition of the horse’s genitals with Saint Philip’s head—something Rembrandt would never have done for his own work.

The Baptism of the Eunuch, Rembrandt ca.1630.
Rembrandt, the Baptism of the Eunuch, ca. 1630, black chalk on paper, 19.2 × 21.1 cm, Munich, Graphische Sammlung, 1453.
J.G. van Vliet’s engraving of the Baptism of the Eunuch, 1631.

According to Otto Benesch, Wolfgang Wegner, Thea Vignau-Wilberg, Christian Tümpel, Marian Bisanz, Martin Royalton-Kisch, Gary Schwartz, and Odilia Bonebakker, the Munich Baptism of the Eunuch drawing is believed to belong to Rembrandt’s early period and was not created in preparation for the etching by Rembrandt in 1641. The article written by Odilia Bonebakker on Rembrandt’s drawing in Munich (2003) presents concordant arguments “to suggest that the drawing was made around the same time as the lost painting of 1629/30.”

Prof. Dr Odilia Bonebakker, Rembrandt’s drawing of The Baptism of the Eunuch in Munich: Style and Iconography p.39. Rembrandt and his followers, drawings from Munich, Thea Vignau-Wilberg (2003).

From Rembrandt’s original horizontal painting to Vliet’s vertical etching explained by Prof. Dr Fernando Garcia-Garcia:

Gary Schwartz, Volker Manuth, and Fernando García-García (a specialist in drawing) identify Rembrandt’s Munich drawing as a preparatory work based on the present painting, “serving as the model for the vertical composition in Van Vliet’s reproduction print” (Gary Schwartz, A Rembrandt Invention: A New Baptism of the Eunuch, 2020, p. 32).

Rembrandt’s drawing of The Baptism of the Eunuch (Munich) served as a basis for the composition of Van Vliet’s vertical etching, preserving its narrative and stylistic elements.

Iconography: the pictorial tradition

A remarkable continuity: Rembrandt’s 1630 painting in the tradition of baptism of the eunuch representations since the 3rd century AD.

The painting The Baptism of the Eunuch from circa 1630 belongs to an ancient pictorial tradition. This tradition includes manuscripts, frescoes, and reliefs of sarcophagi, which present the essential elements of the theme: Philip, the eunuch, a scroll text, a horse-drawn wagon (sometimes) with one horse facing the viewer, a page and a dog.

Philip, the deacon meeting the Ethiopian eunuch, 200-399, Museo Pio Cristiano, Musei Vaticani, System Number: 171735, citation: Wilpert, J., Sarcofagi cristiani antichi, I (1929), p. 27; pl. XXI. Image coutesy of the Museo Pio Cristiano, Musei Vaticani.
Menologium (or calendar) of Basil II, Biblioteca Apostolica Vaticana, Shelfmark Vat. Gr. 1613. Image source Wikimedia Commons

Philip and the eunuch sit in a chariot drawn by four horses, while on the right, the deacon stands at an altar in a ciborium.

There are identifiable features from which Rembrandt could draw inspiration. For example, Jan van Scorel (1495–1562) stayed in Rome around 1522, where he entered the Dutch pope Adrian VI service. He was appointed curator of the Vatican’s art collections—effectively responsible for antiquities (a kind of proto-curator). This position allowed him to consult the Menologium and study Roman reliefs. Maarten van Heemskerck (1498–1574) also went to the Vatican.

The Baptism of the Eunuch, Rembrandt ca. 1630 (reverse).
Menologium (or calendar) of Basil II, Biblioteca Apostolica Vaticana, Shelfmark Vat. Gr. 1613.
Following the pictorial tradition, Rembrandt reproduced the chariot, the horses, and the gaze of the white horse orientated towards the viewer, reversing the details of the present painting.

Fidelity to pictorial tradition and enduring iconography defines the master’s approach and elevates his creative power.

Rembrandt’s distinctive vision in reimagining the baptism beyond his predecessors.

The Baptism of the Eunuch by Rembrandt ca. 1630. Detail of the head of the eunuch.

According to the baptism of the Ethiopian Eunuch from the New Testament (Acts 8:26-39), the Eunuch’s receives the Holy Spirit light. Rembrandt subtly introduced a focal point (1.5 cm illuminated circle) that distinguishes him from his predecessors in interpreting.

A discreet and enigmatic miracle, performed by a divine ray of light. This tiny halo appears as a “visual exegesis,” symbolizing God’s presence and embodying the allegorical significance of a spiritual light that purifies the soul without altering the color of the skin.

“Most of all, the painting expresses dignity, the dignity and self-possessedness of all the figures, engaged in a mysterious rite of solemn portent.”  Gary Schwartz, A Rembrandt Invention: a new baptism of the eunuch, 2020, p. 75.

Detail of the Eunuch in the Baptism of the Eunuch by Rembrandt ca. 1630.

Depicting the baptism performed solely under divine light signifies a purposeful departure from both traditional and contemporary interpretations.

Continuity in retelling the same narrative a decade later.

The mirrored composition, key figures, and recurring details are elements of invention that could only have been conceived by Rembrandt.

The Baptism of the Eunuch, Rembrandt ca.1630.
Rembrandt, The Baptism of the Eunuch, inscribed: Rembrandt. f, 1641. Etching on paper, 17.8 x 21.3 cm. Amsterdam, Rijksmuseum, RP-P-1987-185 (2). Image courtesy of the Rijksmuseum.

Rembrandt reproduces his artistic qualities, even graphic imperfections, from his swift and inspired process.

Philip’s hand and arm.

Philip’s arthritic hand is rendered identically.

Philip’s hand in the Baptism of the Eunuch painting of 1630 and in the etching of 1641.
Details of Philip’s arm from the present painting and in the 1641 etching and a detail of Christ Appearing to Magdalena at the Tomb, 1638, Royal collection of United Kingdom.

Ten years later, his St. Philip foreshortening of the arm in 1641 is still awkward, but Rembrandt softened it with the interruption of the cloak, which allows the arm to appear more naturally integrated with the shoulder. Let’s note that there are other arms forshortenings in Rembrandt’s œuvre such as Jesus in Christ Appearing to Magdalena at the Tomb, 1638.

The most known painting with an inaccurate arm foreshortening.

Detail highlighting the inaccurate foreshortening of the right arm. The Anatomy Lesson of Dr. Nicolaes Tulp, Rembrandt, 1632, Mauritshuis, The Hague. Image courtesy of the Mauritshuis.

Soft evolution of the Ethiopian Eunuch gesture.

Detail of the Eunuch in the present painting 1630 and the etching of 1641.

It’s as if the 1641 engraving, executed ten years later was a new sequence, seconds later, with a tilted angle. The hands clasped on the chest and raised to the sky.

Presence of the same ornaments.

In the engraving, the page holds the turban with a more ornate aigrette and pointing upward.

Ten years after, the lack of attention given to the page’s hand which could have been wrongly interprated in the painting, is surprisingly worse.

Just like in the painting, behind the page, the dog with the collar observes and seems ready to bark.

Details of the page and the dog in the Baptism of the Eunuch painting of 1630 and in the etching of 1641.
Detail of the page in the Baptism of the Eunuch by Rembrandt ca. 1630.

The great significance of replicating minute details of the painting: the tiny characters.

Detail of the tiny characters in the background in the Baptism of the Eunuch, Rembrandt 1630 and in the etching of 1641.

The small figures might not only animate a biblical landscape. They could also represent Saint Philip, the exegete, seated before the angel, instructing him to help the eunuch to interpret the text and to convert him. The recurring postures of these figures across both works might remind Heemskerk’s scene in his two pages engraving on the theme.

When he sold the painting in 1641, Rembrandt created an etching of the scene, preserving its narrative elements and meticulous details.

Stylistic analysis

Understanding the ‘rough’ style through the old men in the 1630s and after (e.g., 1633).

According to Ernst van de Wetering, Rembrandt’s painting style evolved not only across different periods but also within the same period, often exhibiting radical variations. During Rembrandt’s early period, his style was frequently more “rough” as The Head of the Old Man in a Cap, c. 1630, than “fine” as Jeremiah Lamenting the Destruction of Jerusalem, 1630. Van de Wetering successfully persuaded the Rembrandt Research Project team of this observation. He references J. Bruyn: “We now agree that his conception, backed with impressive argumentation sourced from contemporary texts from Rhetoric, is an argument that makes the range of styles within the same period entirely acceptable.” (What is a Rembrandt? Ernst van de Wetering, Rembrandt Paintings Revisited: A Complete Survey, Corpus of Rembrandt Paintings VI, p. 52).

Detail of Jeremiah Lamenting the Destruction of Jerusalem, Rembrandt, 1630, oil on panel, 58.3 × 46.6 cm, Rijksmuseum, Amsterdam. Image coutesy of the Rijksmuseum.
Detail of Bust of an Old Man, Rembrandt, ca. 1630, oil on panel, 21.8 x 16.3 cm, private collection. Image source Wikimedia Commons
Detail of Head of the Old Man in a Cap, Rembrandt, c. 1630 (head size 14 x 8 cm). Agnes Etherington Art Centre, Kingston. Image coutesy of the Agnes Etherington Art Centre.
Detail of the head of saint Philip in the Baptism of the Eunuch, Rembrandt, ca. 1630 (head size 9 x 5 cm).
Detail of Bust of a Bearded Old Man of 1633,  oil on paper, mounted on panel, 8.9 x 6.4 cm, The Leiden collection, Image source by Peter Horree from Wikimedia Commons.

St. Philip’s head in The Baptism of the Eunuch (c. 1630) is distinguished by its dynamic application of short, curved brushstrokes in a varied chromatic range. The modulation of browns, ochres, and white highlights—particularly in the scratchy beard and the tousled curls on the forehead—infuses the composition with psychological tension and emotive resonance. The work conveys a nuanced balance of delicacy and force. In terms of style, it bears close affinities to Rembrandt’s production in Leiden, notably drawings and oil sketches such as the Bust of an Old Man (c. 1630), Head of an Old Man in a Cap (c. 1630), and The Bust of an Old Bearded Man (1633) executed in Amsterdam. The painterly treatment of Philip’s head is especially noteworthy on this intimate scale (9 cm x 5 cm), maintaining the vitality and spontaneity of a sketch while conveying the observational acuity of a life study.

Typical of Rembrandt brushwork.

Detail of the Laughing Man by Rembrandt, 1629-1630, Mauritshuis, La Haye, Image courtesy of The Mauritshuis, and detail of the horseman from the present painting 1630.

The Morelian detail of the open mouth showing teeth, as seen in the horseman of the present painting and The Laughing Soldier, c.1630, is characteristic of Rembrandt’s brushwork.
See Ernst van de Wetering, Corpus of Rembrandt Paintings VI, Springer, 2017, p. 42 (fig.49).

Rembrandt often mixed painting and drawing with the brush…* This feature is also present in this painting. *Ernst van de Wetering in Corpus VI, Rembrandt pp. 35-50 and pp.120-145, and in The Painter at Work (1997), pp. 155–190.

Sketched head with swift, light, and expressive brushstrokes.
Details of the painting: the thick impasto of the foreground vegetables and the delicate, nearly sketched horse strap in the background.

The order of working from back to front is typical of Rembrandt’s artwork. Ernst van de Wetering in The painter at Work Chapter II, pp. 32-36

The reserve around the head of the eunuch in the present painting is a common feature in Rembrandt’s work. Rembrandt strategically uses reserved areas to suggest light, atmosphere, and spatial openness. Through houding, he sharpens details in key passages (like the eunuch’s hair curls) while softening others (such as the unpainted space), guiding the viewer’s gaze and enhancing spatial. Ernst van de Wetering in The painter at Work Chapter II, Painting Materials and Working Methods of the Young Rembrandt, pp. 28, 37, 43.

Detail of the reserve around the head of the Eunuch in the present painting.
Detail of characters in the back from the present painting and from The Ass of the Prophet Balaam, Rembrandt 1626, Musée Cognacq-Jay, Paris. Image courtesy of the Musée Cognacq-Jay.

The Characters in the back and/or in the dark are often found in Rembrandt scenes. They are painted with an incredible economy of means, yet they are particularly expressive.

A unique light treatment.

The baptism by light: The zenithal light of the Holy Spirit pours into fullness from heaven by irradiating Philip’s right hand, reflecting a ray on the hair of the eunuch.

Other scenes where Rembrandt prefered this unique right light treatment: David presenting the head of Goliath to Saul (1627), The supper at Emmaus (1629),  Belshazzar’s feast 1635-1638, among others.

David with the Head of Goliath before Saul, 1627, Oil on oak panel, 27,4 x 39,7cm, Inscribed bottom center RH. 1627 Kuntsmuseum, Basel. Image courtesy of the Kuntsmuseum.
The Baptism of the Eunuch, Rembrandt ca.1630.

Despite being an early work, the painting already demonstrates Rembrandt’s distinctive brush techniques, some of which would later become his signature strokes.

Physical properties: the painting is in good and stable condition

The three boards of baltic wood that make up the panel have undergone the effects of time.

The panel has been trimed on all borders at different points in time, however the senestre side’s crude cut is notable. The back of the panel has been thinned to prevent from worm damage.

Details of the clean dextre border, details of the rough senetre border.

Minor variations in texture observed in certain areas, which may affect the perception of Rembrandt’s hand, are the result of successive restoration campaigns, particularly along the panel joins.

Condition report

In his report (July 22, 2022, Paris) on the present painting, M. van de Laar (former Rijksmuseum painting conservator) states “The condition of this painting is stable and very good.” Following the advice of Michiel Franken from the Netherlands Institute for Art History (RKD), the restoration was carried out by Regina Costa Pinto (former restorer at the Louvre) under the supervision of Ger Luijten and Fernando García-Garcia.
Michel van de Laar notes: “the damages, fillings and abrasion along and around the original two gluing joints and the two prominent cracks are concurrent for a 17th century painting with this construction. Study of the painting under UV reflection light, with the LED torch, a loupe and with the naked eye shows that the retouches of the last restoration were carried out skillfully, carefully and with the finest precision.”

The imperfections along specific panel joint lines are unmistakable evidence of the restorers’ interventions and cannot be attributed to hypothetical workshop involvement.

Scientific research

These analyses confirm the painting’s authenticity, with materials and techniques consistent with Rembrandt’s known works from the period. Further examination reveals no significant alterations or overpainting, supporting its original integrity.

Dendrochronological analysis by Prof. Dr Peter Klein confirms that the painting’s three panels are made of Baltic oak, with a terminus post quem for use as a painting support around 1630–1631. This coincides precisely with Rembrandt’s preparatory drawing of c.1630 for the engraving by J. G. van Vliet, in which both the invention and the date 1631 are clearly inscribed.

The Reflectography & X-ray, UV fluorescence photography, and Infrared reflectography were directed by Art in Lab on the 27. 10. 2022, show an older image, upside down, which was typical of Rembrandt’s practice. Ernst van de Wetering wrote*: “The X-radiograph shows the kind of freely executed traces of an earlier image, which could indicate double use of the panel, so typical of Rembrandt.” Rembrandt made some thirty paintings on top of other paintings.

*A corpus of Rembrandt paintings, vol. VI, Rembrandt’s paintings revisited: A complete survey,  (Notes to the plates), Dordrecht (Springer) 2017, p. 503, nr. 45, Oil study of an old man, c.1630, Copenhagen, Statens Museum for Kunst.

Infrared reflectography, digital radiography, contrasted reflectography head side up and inversed.

“The term “pentimento” should be kept for the changes made to a painting that has already been partly or fully worked up.”
Ernst van de Wetering, The Painter at Work, Chapter II, Painting, Materials and Working Methods of the Young Rembrandt: p.42, (figs. 42,43,44).

Detail of the lances of the present painting with a visible pentimento.

Multispectral and reflectography analysis conducted by Lumière Technologie, also showed the remaining portions of foliage that Rembrandt subsequently covered over to rebalance the composition and erase nonsensical foliage due to the cut on the dextre side.

Upper left detail of the pentimenti (branches) and underpaints (foliage on the edge) in the present painting in false colors, inversed low angle false colors, and multispectral in negative value showing the covering over of the Eunuch’s garment at right knee level.

We can also notice the covering of the Eunuch’s garment portion in front of the knee, which is still visible in Vliet and Visscher’s prints.

Macro photographies of samples of the pictural layer (lower images) and under ultra violet light (upper images).

Dr. Hermann Kühn studied the pigments (from extracted fragments) and stratigraphy by stereo binoculars, microscope, macro photography, and UV in Mme Brans’ workshop, Paris, on February 5th, 1985.

The oak panel of Rembrandt’s The Baptism of the Eunuch(ca. 1630–31) is prepared with a whitish-yellow ground composed of lead white and calcium carbonate (chalk), bound in linseed oil. This is followed by a black imprimatura or primuversel containing finely ground lamp black, red iron oxide (ochre), and traces of lead white bound in linseed oil. A thin, UV-fluorescent surface layer indicates the presence of a mastic-based glaze or varnish.

This analysis corresponds to Rembrandt’s late Leiden-period technique. It is closely related to Judas Returning the Thirty Pieces of Silver (1629), where the same pigment selection and application method are used. This is documented by Van de Wetering, Rembrandt: The Painter at Work (2000), pp. 97–155, 209–211, Hermann Kühn: Rembrandt’s Painting Materials. (1986), pp.187–201 and Raymond White & Jo Kirby: In Art in the Making: Rembrandt (1988), pp. 104–110.

Provenance and traceability

The earliest likely record of the painting’s direct purchase from Rembrandt dates to 1641, when François Langlois—acting on behalf of his friend Claude Vignon (see letter)—acquired the work directly from Rembrandt. Vignon later produced a painted copy a large detail of the original.

Documented presence of the painting in France circa 1641.

Around November 1641, Claude Vignon, French painter, member of the Académie Royale, probably acquired the painting from the art dealer François Langlois after his visit to Rembrandt.

“according to P. Mariette, that Langlois went to Holland, where he bought paintings, prints and drawings for Charles I, King of England, who often gave him commissions for his collection”
Page 445 of the “Lettere su la pittura, scultura ed architettura”
“and in Amsterdam my greetings too to Mr. Rembrandt and bring something from him”. Page 446 of the “Lettere su la pittura, scultura ed architettura”
Anthony Van Dyck, Detail of Portrait of François Langlois, called Chartres, probably early 1630s, oil on canvas, 97.8 x 80 cm. Barber Institute of Fine Arts, University of Birmingham, Birmingham. Image courtesy of the Barber Institute of Fine Arts.

There is a faithful painted copy probably made by Vignon himself around 1641, which attests to its presence in France during this period.

The striking resemblance between the fragment painted by Vignon and Rembrandt’s Baptism of the Eunuch (ca. 1630), as noted by Claude Vignon specialist Dr. Paola Pacht Bassani, establishes several points:

It confirms a direct connection with Rembrandt’s work, which Vignon’s close friend F. Langlois.

Reportedly brought back from Amsterdam, as detailed in Vignon’s mission letter. Langlois was well aware of Vignon’s deep interest in this theme, as Vignon had painted it in 1638 for the “Mays” of Notre Dame. June 27, 1638, Vignon named his son Philippe and Langlois became his godfather, underscoring the theme’s personal significance. This likely influenced Langlois’s decision to choose this work specifically for Vignon.

Vignon tended to produce his own copies of certain paintings he acquired before reselling them. His reproductions in such cases were often executed with speed, focusing on the central fragment—Philip baptizing the eunuch.

The Baptism of the Eunuch, Rembrandt ca.1630.
Copy of a portion of Rembrandt’s 1630 Baptism of the Eunuch by Claude Vignon, 1641.

Paola Pacht Bassani, ‘Claude Vignon’ (1593-1670), Arthena, 1993, ‘Vignon et compagnie’ p.65, mentions F. Langlois’ travel to the Netherlands with a visit to Rembrandt (Vignon’s letter of mission to Langlois, November 1641). It’s interesting to note that Langlois was also selling paintings, drawings, and engravings to the Charles I collection, because after the king’s death and the dispersal of the collection, the painting is presented (and sold) in Amsterdam, on April 6. 1695, as Catalogus Schilderyen mentions (lot 48), then sold again in London with the works of the masters of King Charles the First collection (reconstituted by Charles II), on June 9. 1798, as Christie’s catalogue mentions (lot 66).

A testimonial painting: evidence supporting Claude Vignon’s acquisition and direct copy of Rembrandt’s Baptism of the Eunuch, ca. 1630.

The Baptism of the Eunuch in London in 1798 and again in 1973.

Christie’s catalogue, London, June 9. 1798, Philip Baptising the Eunuch by Rembrandt. Image courtesy of Chirstie’s London.
Saint Philip Baptising the Eunuch by Rembrandt is listed in the Christie’s catalogue of the sales made on Friday, October 26, 1973, sold by “A. Stein” and purchased by “James” lot. 86. Image courtesy of Chirstie’s London.

Christie’s sales catalogue with auctioneers’ handwriting showing the exact dimensions of the painting with the same lot 86 and Christie’s code 642VR printed on the former cradle of the present painting (it is now in a small transparent pocket inserted in the current frame) and the seller’s name: Adolf Stein.

The supposedly lost painting has, in fact, been sold under its rightful attribution on at least three occasions.

Copies of the Baptism of the Eunuch, Rembrandt ca.1630.

Rembrandt’s workshop copies of the painting.

Two of the painted copies of the original artwork (found in the RKD archives) show the painting before it was cut off, in its original proportions.

Rembrandt workshop copy (RKD archives).
Rembrandt workshop copy (RKD archives).

The workshop copies show the stylistic nuances that differentiate the master from his students.

Two of the painted copies of Van Vliet’s engraving after Rembrandt.

It is interesting to note that all the reproductions after Rembrandt, deriving from Vliet’s print exhibit the same iconographical errors, or worse, probably attemting to solve the eyes directions inconsistency made by the engraver during the change of composition from the horizontal modello (the present painting) by Rembrandt.

A reversed painted copy of the etching by Vliet after Rembrandt 1631.(RKD archives)
The baptism of the Eunuch, Etching on paper, 58.0 x 48.7 cm, Rotterdam Museum, anony-mous after Vliet, after anonymous copy. (RKD archives)

These copies of Vliet’s engraving after Rembrandt’s painting suffer from the same lacunae found in the original copy of the engraver.

Taken together, the various arguments, diverse in nature, form a mutually reinforcing and coherent web, all converging on the conclusion that this is a highly compelling work by Rembrandt.

The painting already exhibited

2019 Leiden: Museum of Lakenhal

Museum De Lakenhal, Leiden: Young Rembrandt-Rising Star, 2019. © SFO ARTS
Catalogue: Young Rembrandt-Rising Star, Leiden, The Baptism of The Eunuch [cat 53], written by Christiaan Vogelaar. p. 146.

2020 Basel: Kunstmuseum

Kunstmuseum, Basel: Rembrandt’s Orient, 2020. (Image from virtual tour)

Virtual tour– Room 6

Catalogue: Rembrandt’s Orient, Kunstmuseum, Basel, The Landscape of the Bible: Early Rembrandt and His Influences, The Baptism of The Eunuch, written by Gary Schwartz, [Cat. 62], p. 216.

2021 Potsdam: Museum Barberini

Museum Barberini, Potsdam: Rembrandt’s Orient, 2021. (Image from virtual tour)

Virtual tour – Look for Room 1A3 and click on the painting to zoom in the artwork

Catalogue: Rembrandt’s Orient, Museum Barberini, Potsdam,The Landscape of the Bible: Early Rembrandt and His Influences, The Baptism of The Eunuch, written by Gary Schwartz [Cat. 62], p. 216.

Even before the latest decisive findings for its attribution to Rembrandt van Rijn, the painting was already included in several exhibitions.

Literature

  • 1986, Hermann Kühn: “Rembrandt’s Painting Materials.” In Artists’ Pigments: A Handbook of Their History and Characteristics, vol. 1, pp.187–201, edited by Robert L. Feller, Washington, D.C.: National Gallery of Art, 1986.
  • 1988, Raymond White and Jo Kirby. In Art in the Making: Rembrandt, edited by David Bomford, pp. 104–110. London: National Gallery Publications, 1988.
  • 2017-2019: Ernst van de Wetering, regarding the attribution of the painting, circa 1630, to Rembrandt, recommended referring to his writings as follows:
    • 2000, Ernst Van de Wetering concerning stratigraphy: The Painter at Work. Amsterdam: Amsterdam University Press, 2000, pp. 97–155, 209–211.
    • 2005, Ernst van de Wetering, Corpus of Rembrandt Paintings, vol. IV: The Self-Portraits. Dordrecht: Springer, 2005. p. 628: The Head of an Old Man in a Cap, c.1630 (A. Etherington Art Centre, Queen’s University), identified as the model for St. Philip’s head.
    • 2008, Ernst van de Wetering, A Life in 180 Paintings, Missing Paintings, Local World BV, 2008, p. 46.
    • 2009, Ernst van de Wetering, The Painter at Work, Chapter II, Painting Materials and Working Methods of the Young Rembrandt, University of California Press, 2009, about the order of working, reserve, pentimenti. pp. 28, 32, 36-37, 43.
    • 2015, Ernst van de  Wetering, A corpus of Rembrandt paintings, vol. VI, Rembrandt’s paintings revisited: A complete survey,  (Notes to the plates), Dordrecht (Springer) 2015, p. 503, nr. 45, Oil study of an old man (c.1630), Copenhagen, Statens Museum for Kunst) and p. 509, nr. 56.
    • 2017, Ernst van de Wetering, Rembrandt Paintings Revisited: A Complete Survey, Corpus of Rembrandt Paintings VI, Springer, 2017: about the style: Laughing soldier (c.1630) p. 44, fig. 49 and the old men: Bust of an Old Man (c.1630), p. 42, fig. 47 and p. 97, no. 36, fig. 5, Oil study of an Old Man in a Cap, (c.1630), p.p. 41-42. (Notes to the plates) p. 503, nr. 44, and brunaille, Bust of a Bearded Old Man (1633), p. 172, nr 103.
  • 2020, Gary Schwartz publishes A Rembrandt Invention: A New Baptism of the Eunuch (Primavera Press, Leiden), an authoritative and groundbreaking study on the subject. (Elmer Kolfin’s 2021 review, lacking firsthand examination and marked by misquotations and misinterpretations, adds no meaningful value.)
  • 2023, Volker Manuth report: The rediscovery of The Baptism of the Eunuch, ca. 1630, by Rembrandt, Summary and conclusion.
  • 2023, Gary Schwartz Report: in which, the art historian attributes The Baptism of the Eunuch, ca. 1630 to Rembrandt.
  • 2025, An interactive knowledge bank, the Art Model System dedicated to The Baptism of the Eunuch by Rembrandt, ca. 1630 is available upon request.
Detail of the horseman in the Baptism of the Eunuch by Rembrandt ca. 1630.

Acknowledgements

This research benefited from the contributions of many individuals. Gratitude is extended to Ernst van de Wetering, Gary Schwartz, Volker Manuth, Ger Luijten, Christiaan Vogelaar, Odilia Magdalena Bonebakker, Michiel Franken, Fernando García-García, Michel van de Laar, and Regina Costa Pinto for sharing their notes, sources, and expertise, which greatly informed this work. Thanks are also due to the Fondation Custodia, Paris, where The Baptism of the Eunuch was kept, with particular appreciation for Ger Luijten, the former director. Photographies of “The Baptism of the Eunuch” used in this research was provided by Gilles Alonzo and Doro Keman.