Catalogue entry
Duccio di Buoninsegna active 1278; died 1319
NG 1140
The Healing of the Man born Blind
2011
,Extracted from:
Dillian Gordon, The Italian Paintings Before 1400 (London: National Gallery Company and Yale University Press, 2011).

© The National Gallery, London
Predella panel from the Maestà
1307(?)/8–11
Egg tempera on wood, 45.1 × 46.7 cm
Christ, accompanied by the disciples, came upon a blind beggar. Christ spat on the ground, made clay of the spittle, and put it on the eyes of the blind man, telling him to wash in the pool of Siloam (John 9:1ff.). On the right the blind man has laid down his stick, washed his eyes in a fountain and recovered his sight.
Technical Notes
Panel structure and condition
The original panel has been trimmed to the painted surface, 43.6 × 45.2 cm. Overall size, including non‐original edge, 45.1 × 46.7 cm. The back is no longer visible as it has been reinforced with balsa wood, which has narrow wood strips attached all round. Knots in the wood can be seen in the photograph in the Conservation dossier, taken on 29 September 1982 after a cradle had been removed and before the balsa wood had been put on. Before the cradle was attached, the panel had been thinned to c. 0.6 cm.1
Near the bottom edge, in particular below Saint Peter’s right foot, are traces of original gold, probably from the gilding of the original engaged frame.

Detail of Christ’s head. © The National Gallery, London
Painting condition and technique2
Cleaned and restored in 1982–3.
The water‐gilded background is somewhat worn, as is the gold of Christ’s halo. The halo (fig. 1) is incised freehand with a diamond and circles in the cruciform and tendrils in between.
The only mordant gilding is on the edge of Christ’s robe, where the mordant appears yellow‐brown as in NG 1139 and NG 566.
Infrared reflectography reveals a detailed underdrawing for the figures (fig. 4), done with a brush, similar to that found in the Annunciation (NG 1139, see pp. 157–8, figs 2, 3 and 4) and thus attributable to Duccio. Both the underdrawing and the incisions in the architecture have undergone numerous changes. Two hands seem to have been involved.3 The buildings were initially drawn freehand, almost certainly by Duccio; another hand refined the architecture. Some of the architecture that was drawn was never painted, such as the capitals on the tower on the right and a lunette over the door in the central tower, as well as a lunette in the door beside that.
The second hand seems to have been responsible for the more precise and mathematically designed features of the architecture (see fig. 6). All the straight lines have been incised with the help of a straight edge. These incisions are frequently longer than necessary or continuous where they do not need to be.4 Internal proportions, such as the spaces below the crenellations or the shuttered windows in the tower at the right, have been marked off along these lines with a sharp point, leaving small depressions. Some changes were made to the incised composition, such as the overhang housing a small staircase which itself was a revision to the freehand underdrawing (see fig. 4). The paint of the architecture was also meticulously applied, sometimes leaving small gaps between areas of colour, or neatening straight edges by ruling into the wet paint, or reinforcing them with metalpoint when the paint was dry;5 final incisions, although not with metal‐point, were also ruled into the wet paint of the Annunciation (NG 1139, see p. 159, fig. 6).
Infrared reflectography also reveals several changes made in the final painting of the figures. In the group of the Apostles changes were made to the underdrawn faces, mostly moving their eyes and foreheads a small amount.
The blind man in front of Jesus was painted as drawn, but the same figure at the fountain has undergone numerous changes, which are difficult to interpret (figs 2 and 3).6 Duccio seems to have had difficulty in arriving at a solution for his left shoulder and hand beside the fountain. He may originally have been drawn lower down. The height of his left shoulder has been altered at least twice. It was drawn and part‐painted broader and higher than in its present painted position. His left hand seems to have been grasping folds of drapery away from his body; in the final solution both the underdrawing and the painting of this hand were executed with very emphatic lines as if to conceal earlier attempts at the pose or make clear which lines represent the final pose. His cape is longer than the one he wears when he is shown in front of Christ, again possibly to disguise earlier solutions to the position of the arms.
[page 165] [page 166]
Infrared reflectogram detail of the blind man at the fountain. © The National Gallery, London

Detail of the blind man at the fountain. © The National Gallery, London
Although some of the paint surface, particularly in the draperies of the Apostles, is abraded, generally it is in good condition, except for a large loss at the right‐hand edge: missing is the top of the fountain and much of the blind man’s face, most importantly his left eye, reconstructed when the painting was cleaned in 1982–3. There is a loss in the neck and shoulder of Christ, and in the middle of the foreground (where there are also deep scratches) and all around the edges. The losses at the edges were caused by the removal of the engaged frame. The painting of the figures seems to have been done by Duccio with the help of assistants. The flesh painting, which has been underpainted with green earth, has been thinly painted and is quite worn.
Christ’s cloak has been painted with a very high quality of ultramarine; his red robe is painted with red lake mixed with white, with red lake for the shadows. The garments of the Apostles have been painted with vermilion, red lake, green earth, ultramarine, white, azurite, black, and brown earth.
Unlike the pink walls in the Annunciation, there is no grey under the pink paint of the buildings. The pigments used for the architecture are red, yellow and brown earths, red lake, black and white.
[page 167]
Infrared reflectogram of NG 1140. © The National Gallery, London
Iconography
NG 1140 was probably the seventh of probably nine narrative scenes on the back predella of Duccio’s Maestà (see p. 175, fig. 2), which was devoted to Christ’s ministry. It came after Christ and the Woman of Samaria and before the Transfiguration (NG 1330).
The subject is taken from the Gospel of Saint John (19:1). As Pieter Singelenberg has shown, it is found in both Western and Eastern art: for example, in a fresco in Sant’Angelo in Formis (fig. 5), where the blind man is shown bending over the fountain and the water is pouring from the mouth of a lion, as in NG 1140, a feature which Singelenberg states is found elsewhere; and in a Byzantine manuscript (Paris, Bibl. Nat. MS Gr. 510, f. 316).7 James Stubblebine also suggested that NG 1140 was based on a Byzantine manuscript source, for example, an eleventh‐century manuscript in the Bibliothèque nationale, Paris (grec 74), or a near contemporary thirteenth‐century Codex in Mount Athos (Iviron 5) showing around thirty scenes from Christ’s life.8 As Stubblebine pointed out, usually the composition follows a fixed scheme, with Christ instructing the blind man to go to the pool of Siloe (or Siloam) on the left and the blind man bending over to wash [page 168] his eyes on the right, whereas NG 1140 differs from these in that it shows the blind man standing upright. John White provided the explanation for the change: the blind man, his sight now restored, looks up at the transfigured Christ, who radiates divine light in the next scene, the Transfiguration (NG 1330).9 The thematic connection which might explain the choice of these two scenes and their juxtaposition lies in the words of Christ as he explains why he must accomplish this miracle: ‘As long as I am in the world, I am the light of the world’ (John 9:5).

Anonymous Italian painter, Christ healing the Blind Man, eleventh century. Fresco. Sant’Angelo in Formis. CAPUA Sant’Angelo in Formis, Capua © Photo Scala, Florence
Marcia Hall has noted that undyed cloth was worn by beggars and outcasts,10 although Christoph Wagner states that this is not intended as social comment; he sees the scene as depicting blindness as a metaphor for the sins of the world, and brown as the colour associated with sin, emphasised by the contrast between the colourful left side of the composition and the drab colours on the right.11
A drawing of this subject dating from the second half of the fourteenth century in the British Museum (1895–9‐15–680) has been shown to derive from NG 1140.12
Attribution
NG 1140 was attributed by Stubblebine to Pietro Lorenzetti.13 As discussed above, there are at least two hands at work: Duccio was responsible for the design and part of the execution, for example the face of Christ. The draperies and faces of the Apostles seem to have been painted by assistants. An unidentified painter, expert in the depiction of architecture, painted the buildings. He is probably Simone Martini, who almost certainly trained with Duccio; some of the architecture is very similar to that in Simone’s altar piece of Beato Agostino Novello (Siena, Pinacoteca), particularly in the scene of the miracle of a child saved from a dog.14
For further comment on Duccio’s Maestà see pp. 174–87.
Exhibited
Provenance
Purchased from C. Fairfax Murray of Florence, 1883 (Clarke Fund).15
[page 169]Notes
1. Information in the National Gallery Conservation dossier. (Back to text.)
2. For the technique see in particular the exh. cat. Art in the Making 1989, pp. 83–9. (Back to text.)
3. The account given here differs slightly from that in the exh. cat. Art in the Making 1989, pp. 86–7, since more advanced reflectography which achieves greater clarity in imaging allows the initial freehand of the underdrawing of the architecture, which is attributable to Duccio, to be seen. For a critique of the exh. cat. Art in the Making 1989, see Eclercy 2004, pp. 83–7. (Back to text.)
4. In the exh. cat. Art in the Making 1989, p. 87, it is stated that the only apparent function of one of the horizontal lines is to delineate the edge of a small roof. In fact it is also a guideline for other features further to the left. (Back to text.)
5. The metalpoint was analysed by SEM‐EDX and found to be an alloy of lead and tin. See the exh. cat. Art in the Making 1989, p. 87. (Back to text.)
6. In the exh. cat. Art in the Making 1989, p. 88, it is stated that the blind man was at some stage drawn bending over the fountain. More advanced reflectography throws doubt on this interpretation. It is not at all clear what solutions Duccio was experimenting with. The blind man’s raised right hand was in fact underdrawn. It is uncertain whether the bending of his elbow, coinciding as it does with a fault in the gesso (no knot in the wood is visible in the X‐radiograph), is due to chance. (Back to text.)
7. Singelenberg 1958, pp. 105–12, esp. figs 7, 9 and 10. Notice that in Paris, Bibl. Nat. MS Gr. 510, f. 316, the scene is followed by Christ and the Woman of Samaria, which in Duccio’s Maestà must have preceded NG 1140. (Back to text.)
8. Stubblebine 1975, pp. 178 and 181; Stubblebine 1979, I, pp. 49–51, and II, figs 574 and 576. (Back to text.)
9. White 1979, p. 122. For his reconstruction of the back predella see White 1973a, pp. 349–50. (Back to text.)
10. Hall 1992, p. 35. (Back to text.)
11. Wagner 1998, pp. 15–
28. (Back to text.)
12. Pouncey 1946, pp. 168–72; Popham and Pouncey 1950, cat. 269, pp. 168–9, pl. CCXXXIII; Chapman in Chapman and Faietti 2010, pp. 92–5. (Back to text.)
13. Stubblebine 1973a, pp. 190–8, and p. 203, fig. 34; Stubblebine 1979, I, pp. 41 and 56. (Back to text.)
14. Thomas de Wesselow kindly informs me that he came to the same conclusion, partly on the basis of the architecture in the altar piece showing Beato Agostino Novello, but also in the context of architecture in other works by Simone Martini (presented at a seminar given at the National Gallery on 8 July 2002), and in his unpublished PhD thesis of 2000. (Back to text.)
15. See p. 163, note 32, under NG 1139. (Back to text.)

Detail of the architecture in NG 1140. © The National Gallery, London
List of archive references cited
- London, National Gallery, Conservation Department, conservation dossier for NG1140
- Mount Athos, Iviron Monastery, Iviron 5: Codex, thirteenth century
- Paris, Bibliothèque nationale, grec 74: an eleventh‐century manuscript
- Paris, Bibliothèque Nationale, MS Gr. 510: a Byzantine manuscript
List of references cited
- Bomford et al. 1989
- Bomford, D., J. Dunkerton, D. Gordon, A. Roy, with contributions from J. Kirby, Art in the Making. Italian Painting before 1400 (exh. cat. National Gallery, London, 29 November 1989 – 28 February 1990), London 1989
- Chapman and Faietti 2010
- Chapman, Hugo and Marzia Faietti, Fra Angelico to Leonardo. Italian Renaissance Drawings (exh. cat. British Museum, London, 22 April – 25 July 2010), London 2010
- Eclercy 2004
- Eclercy, Bastian, Suis manibus? Studien zur Beteiligung von Mitarbeitern am Entwurfsprozess von Duccio’s Maestà, Munich 2004
- Hall 1992
- Hall, Marcia, Color and meaning. Practice and theory in Renaissance painting, Cambridge 1992
- Padfield et al. 2002
- Padfield, J., D. Saunders, J. Cupitt and R. Atkinson, ‘Improvements in the Acquisition and Processing of X‐ray Images of Paintings’, National Gallery Technical Bulletin, 2002, 23, 62–75
- Popham and Pouncey 1950
- Popham, Arthur E. and Philip Pouncey, Italian Drawings in the Department of Prints and Drawings in the British Museum. The Fourteenth and Fifteenth Centuries, London 1950
- Pouncey 1946
- Pouncey, Philip, ‘Two Simonesque Drawings’, Burlington Magazine, 1946, 88, 520, 168–72
- Saunders et al. 2006
- Saunders, David, Rachel Billinge, John Cupitt, Nick Atkinson and Haida Liang, ‘A New Camera for High‐Resolution Infrared Imaging of Works of Art’, Studies in Conservation, 2006, 51, 277–90
- Singelenberg 1958
- Singelenberg, Pieter, ‘The iconography of the Etschmiadzin Diptych and the Healing of the Blind Man at Siloe’, Art Bulletin, 1958, 40, 105–12
- Skaug 1994
- Skaug, Erling, Punch Marks from Giotto to Fra Angelico, Oslo 1994, 1 and 2
- Stubblebine 1973a
- Stubblebine, James H., ‘Duccio and his collaborators on the cathedral Maestà’, Art Bulletin, 1973, 55, 2, 185–204
- Stubblebine 1975
- Stubblebine, James H., ‘Byzantine sources for the iconography of Duccio’s Maestà’, Art Bulletin, 1975, 57, 176–85
- Stubblebine 1979
- Stubblebine, James H., Duccio di Buoninsegna and his School, Princeton, New Jersey 1979, 1 and 2
- Wagner 1998
- Wagner, Christoph, ‘Metaphern der Blindheit und des Sehens in der Dantezeit. Beobachtungen zur “Heilung des Blindgeborenen” in Duccios “Maestà”’, in Festschrift für Christian Lenz. Von Duccio bis Beckmann, eds F. Billeter, H. Gutbrod and A. Pophanken, Frankfurt am Main 1998, 15–28
- White 1973a
- White, John, ‘Measurement, Design and Carpentry in Duccio’s Maestà’, Art Bulletin, 1973, 55, 334–66 & 547–69
- White 1979
- White, John, Duccio. Tuscan Art and the Medieval Workshop, London 1979
List of exhibitions cited
- London 1989–90
- London, National Gallery, Art in the Making. Italian Painting before 1400, 29 November 1989–28 February 1990
The Organisation and Method of the Catalogue
Sequence
The artists are listed in alphabetical order. Paintings are catalogued in chronological order under the artist’s name. Some artists are identified only as the master of a particular work, such as the Master of the Borgo Crucifix; others are known only through their association with a particular area, such as Pisa, Venice or Umbria.
Attribution
A painting is discussed under the artist’s name where the authorship is not considered to be in doubt. ‘Attributed to’ implies a certain measure of doubt.
Dimensions
Dimensions are given in centimetres; height is preceded by width.
Technical information and method
The paintings listed here, except Segna di Buonaventura’s Crucifix (NG 567), Spinello Aretino’s fresco (NG 1216.1) and Jacopo di Cione’s Crucifixion (NG 1468), have been re‐examined for this catalogue in the conservation studios. The paintings have been remeasured and examined with X‐radiography and infrared reflectography wherever possible.
The X‐radiographs were made using conventional X‐ray sensitive film sheets (30 × 40 cm, Kodak Industrex AA400), which have been scanned to produce 16‐bit mono TIFF digital images and finally assembled using software to produce a mosaic.1 A complete survey of the paintings in infrared was made using a Hamamatsu C2400 vidicon system, equipped with a N2606‐06 vidicon tube, which is sensitive between 500 and 2200 nm (radiation shorter than 900 nm was excluded using a Kodak 87A filter). Where features of interest were identified these were then recorded subsequently, when it became available, with SIRIS or OSIRIS, the Gallery’s digital infrared imaging systems, equipped with InGaAs detectors sensitive between 900 and 1700 nm.2 The paintings were examined with a Wild M650 stereo‐binocular operating microscope at magnifications between 6× and 40×. Photomicrographs were taken using a Zeiss Axiocam HrC mounted on the Wild microscope.
Occasionally references are made to X‐radiographs and infrared images which are not illustrated; this is because once these images are reduced to page size the information they contain is often no longer decipherable.
Technique and condition are discussed together since the condition of a painting is often, among other factors, the result of the techniques employed in its making.
Support
Descriptions of construction and carpentry are based on direct physical examination, infrared images and X‐radiographs. The support is assumed to be poplar unless otherwise stated. Where the wood has been identified positively, this is noted.
Medium
The medium of the paint is assumed to be egg tempera unless otherwise stated. For some of the works, analysis of the binding medium in paint samples has been carried out using Fourier transform infrared microscopy (FTIR) and gas chromatography–mass spectrometry (GC–MS), usually during earlier examinations or in conjunction with conservation treatment. The results are described in the individual catalogue entries and, where published, the reference is given. Some further analysis of samples from a few of the paintings has been carried out specifically for this catalogue.
Gilding and tooling
Information on gilding is presented before that on painting, in keeping with the order of execution. Mordant gilding and silvering are included in the discussion on gilding, despite being applied in the later stages, so that all the techniques of metal leaf decoration could be discussed together. The individual punches are described, but the reader is also referred to Erling Skaug’s catalogue published in 1994. The particular gilding technique used by the artists has generally been identified from examination of the surface of the painting with a stereomicroscope. In some cases samples were available from previous examinations and were re‐examined, or occasionally a new sample was taken, particularly where analysis of the metal leaf or investigation of the composition of a mordant was of interest. Where metal leaf has been identified, this has been confirmed with energy dispersive X‐ray analysis in the scanning electron microscope (SEM‐EDX).
Punch mark illustrations
Unfortunately, when printed, some photomicrographs that show depressions in a paint surface appear to the reader reversed. This is particularly disturbing with some images of punch marks in gilding which may seem to show raised pastiglia. This phenomenon is a result of the way the human brain interprets visual signals; expecting a pattern of shadows and highlights to have been caused by raised areas (which would be more usual in normal life), this is the message sent to the reader by the brain.
[page xxiii]Pigments
Descriptions of the pigments for many of the paintings were available from earlier research carried out during the preparation for the 1989 exhibition Art in the Making: Italian Painting before 1400. Information also existed from studies of new acquisitions or from analysis carried out in support of conservation treatment. The paint samples that existed from earlier examinations were re‐examined with optical microscopy, SEM‐EDX and occasionally Fourier transform infrared (FTIR) microscopy. A limited number of new samples were taken to address specific questions that arose during the research for the catalogue. The surface of the paintings was examined under a stereomicroscope wherever possible at magnifications of up to 40×. At this magnification many pigments can be identified with a reasonable degree of reliability, and these examinations greatly extended the information on pigments and pigment mixtures in areas of the paintings that were not sampled, and enabled the observations from samples to be correlated with the appearance of the painting itself.
Comments
As full an account as possible is given with regard to authorship, companion panels – particularly relevant for altar pieces – subject matter, iconography, original location, date, patronage and so on. The compiler has tried to make this information accessible to the lay reader as well as to the art historian. Inevitably there is a certain amount of speculation, but it is made clear where an argument is hypothetical. For ease of reference the comments are given subheadings, but their sequence varies according to the requirements of the argument.
Notes and references
1. X‐radiography and the associated scanning of the plates and processing were carried
out by the photographic departments of the National Gallery. For a full description
of the process see J. Padfield, D. Saunders, J. Cupitt and R. Atkinson, ‘Improvements in the
Acquisition and Processing
acquisition and processing
of X‐ray images of paintings’, National Gallery Technical Bulletin, 23, 2002, pp. 62–75. (Back to text.)
2. For more details on SIRIS see D. Saunders, R. Billinge, J. Cupitt, N. Atkinson and H. Liang, ‘A new camera for high‐resolution infrared imaging of works of art’, Studies in Conservation, 51, 2006, pp. 277–90. (Back to text.)
About this version
Version 3, generated from files DG_2011__16.xml dated 06/03/2025 and database__16.xml dated 09/03/2025 using stylesheet 16_teiToHtml_externalDb.xsl dated 03/01/2025. Entries for NG564, NG566, NG579.6-NG579.8, NG752, NG1139-NG1140 & NG1330, NG1147, NG1468, NG2927, NG3897, NG5360, NG6572-NG6573 and NG6599 marked for publication; citations for NG6583 altered to include update date.
Cite this entry
- Permalink (this version)
- https://data.ng.ac.uk/0E9J-000B-0000-0000
- Permalink (latest version)
- https://data.ng.ac.uk/0E6L-000B-0000-0000
- Chicago style
- Gordon, Dillian. “NG 1140, The Healing of the Man born Blind”. 2011, online version 3, March 9, 2025. https://data.ng.ac.uk/0E9J-000B-0000-0000.
- Harvard style
- Gordon, Dillian (2011) NG 1140, The Healing of the Man born Blind. Online version 3, London: National Gallery, 2025. Available at: https://data.ng.ac.uk/0E9J-000B-0000-0000 (Accessed: 29 March 2025).
- MHRA style
- Gordon, Dillian, NG 1140, The Healing of the Man born Blind (National Gallery, 2011; online version 3, 2025) <https://data.ng.ac.uk/0E9J-000B-0000-0000> [accessed: 29 March 2025]