About “Guillaume d'Angleterre”
Guillaume d'Angleterre is a 12th-century epic poem in Old French, consisting of 3310 lines. The author identifies himself as Crestiiens on the first line of the poem, which has caused a great deal of debate in the romance philological community as to whether the author is Chrétien de Troyes. (Summary adapted from Wikipedia, CC BY-SA 4.0.)
Some summaries adapted from Wikipedia, CC BY-SA 4.0.