What did Pseudo-Ingulf write that is an important primary source for English medieval history, particularly the late 15th century?
Pseudo-Ingulf Pseudo-Ingulf is the name given to an unknown English author of the "Historia Monasterii Croylandensis", also known as the Croyland Chronicle. Nothing certain is known of Pseudo-Ingulf although it is generally assumed that he was connected with Croyland Abbey.
Nicholas Upton Nicholas Upton (1400?–1457), was an English cleric, precentor of Salisbury, and writer on heraldry and the art of war.