A detailed miniature from the 'Très Riches Heures du Duc de Berry', depicting the scholar Diocrès lecturing to a group of students.

This miniature originates from the 'Très Riches Heures du Duc de Berry', a manuscript commissioned by Jean, Duke of Berry, and executed by the Limbourg brothers. The scene depicts the legendary figure of Diocrès, a professor at the University of Paris, delivering a lecture. According to the hagiographic account, Diocrès was a man of great academic reputation whose soul was condemned to eternal damnation upon his death, an event later revealed to Saint Bruno.

The composition follows the conventions of early fifteenth-century manuscript illumination. Diocrès occupies a central, elevated position, seated upon a wooden chair behind a lectern. He is draped in a blue robe, his head bowed over a long scroll. Surrounding him are several figures, including a scribe in the foreground who records the lecture on a scroll, and various scholars or clerics who observe the proceedings. The background features a patterned wall, a common device in Gothic illumination to suggest interior space without the use of linear perspective.

The palette relies on the use of pigments such as ultramarine, vermilion, and gold leaf, which were standard for high-status commissions of the period. The figures are rendered with a focus on individualised facial features and the heavy folds of their garments, characteristic of the International Gothic style. The scene captures a moment of academic activity, framed by the decorative constraints of the page. The attention to detail in the furniture, the books, and the clothing provides a glimpse into the material culture of the medieval university environment. This print preserves the precise line work and colour application of the original vellum page, allowing for a close examination of the technical skill employed by the artists in the early fifteenth century.