Differences in palette
Some of the differences in palette identified within the manuscript allow us to specify the palette used by each of the four main artists. In most cases, the technical analysis supports the stylistic attribution of hands and paves the way for future analytical comparisons with other manuscripts attributed to these illuminators.
The palette of the Painter of Additional 15677 is characterised by the extensive use of red lead and by the presence of an organic yellow which supplements lead-tin yellow and the clay-rich ochre. He painted all blue areas with an azurite containing high levels of barium impurities. He also made extensive use of a green natural copper sulphate. He is the only artist to have chosen a purple dye, rather than a mixture of azurite and pink. He painted flesh tones with vermilion, lead white and small amounts of chalk.
His associates did not share his palette. Their images are characterised by the presence of indigo, the absence of the clay-rich ochre and the lack of vermilion in some flesh tones as well as the use of different blue and green pigments.
The Master of the Dresden Prayer Book was the only artist to use ultramarine blue and to mix red lead with lead-tin yellow in orange areas.
The three large images of saints painted by the Master of James IV of Scotland are characterised by the exclusive use of lead-tin yellow in yellow areas, the lack of significant impurities in the blue azurite, the presence of indigo in grey areas and of a copper pigment mixed with the clay-rich ochre, and the use of a copper carbonate or sulphate mixed with lead-tin yellow in green areas. The three architectural borders on these folios are the only ones amongst those analysed which contain mosaic gold. The palette used for the miniature of St Luke painting the Virgin on fol. 36r shows some differences, specifically the likely use of a lead oxide yellow and the absence of copper mixed with the clay-rich ochre, but doesn’t match the characteristic features of any of the other three artists.
The Master of St Michael painted flesh tones mostly with lead white and no chalk. He used a very pure azurite, which he also mixed with lead-tin yellow in some green areas, though he also employed a green copper carbonate, possibly malachite.
Agony in the Garden (Passion according to St John)
The Master of the Dresden Prayer Book who painted this page was a remarkable storyteller. He captured both the essence of an event and the tenor of its setting. He constructed pictorial narratives rich in detail and pulsating with energy. The Fitzwilliam image conveys the breathless pace of the incidents unfolding before the viewer and builds suspense through the contrasting moods and actions of the protagonists. The central miniature shows Christ praying in the garden of Gethsemane. The historiated border depicts subsequent events: Christ addresses the Apostles, confirms his identity to the soldiers, and allows them to arrest him, while St Peter is about to cut Malchus’ ear.
The elaborate border with sequential narrative, integrated with the main image, the use of extreme foreshortening and of raised angle of vision to overcome the limitations of space and format are all characteristic of the final, most mature phase in this artist’s career. The novelty of his palette, including bright oranges, teals, burgundies, rich blues, and sometimes black, often arranged in surprising combinations, further attests to the refreshing originality of his art. To obtain such a wide range of colours, the Master of the Dresden Prayer Book made use of numerous pigments and a number of mixtures, including some which set him apart from the other artists who decorated this manuscript. He was the only one to include ultramarine blue in his palette in addition to azurite and indigo. He used the latter mainly in mixtures, to obtain grey and purple-brown hues, and mixed red lead with lead-tin yellow in orange areas.