St. John Witnesses the Casting of the Beast into Hell

On the left, Saint John the Evangelist is depicted in profile, facing right with his hands pressed together in prayer; he wears a pale, draped garment and has a golden halo. To his right, a large, stylized hellmouth shaped like a monstrous, toothy maw rises from the ground. Inside the maw are several heads of the Beast, depicted with sharp teeth and animalistic features, partially obscured by vertical streaks of red paint representing fire. The background is divided into vertical panels of red and blue, decorated with a repeating pattern of fleur-de-lis.

This illumination is a visual interpretation of the Book of Revelation (Apocalypse), specifically the final judgment where the forces of evil are consigned to the abyss. It belongs to the tradition of French vernacular Apocalypse manuscripts, which were widely produced in the 13th century for liturgical and private contemplation.