Croyland Chronicle

Several historical chronicles were written at the Abbey of Croyland, which was the wealthiest religious foundation in eastern England during the Middle Ages.

Text credited to the Abbot Ingulf follows the initial founding of Croyland Abbey, dedicated to St Guthlac by King Æthelbald, as well as its destruction by the Danes in the late 9th century, and the rebuilding of the monastery.

A forged part of the text was formerly used to support the existence of a form of the congé d'élire—royal power over investiture of bishops—in Anglo-Saxon England prior to the Norman Conquest.

The text is concerned primarily with the prelude of the War of the Roses, and mild recounting of the battles fought between Richard III and Henry VII.

It is, in fact, the second continuator (covering the period 1459–1486) who claims to be writing in April 1486, and, sure enough, this section ends with the marriage of Henry VII of England and Elizabeth of York and the rebellion that followed.