Measuring 23.5 cm by 16.2 cm and 5 cm thick, the manuscript consists of approximately 240 pages made of vellum, primarily calfskin, and has been radiocarbon dated to between 1404 and 1438.

The manuscript, handwritten by a medieval scribe in Old French, served as the sequel to the legend of King Arthur. There are just over three dozen surviving copies of the sequel today.