Pipe rolls now in the Cotton Library at the British Museum. Exactly when the Pipe rolls began to be produced is debated amongst historians. Some hold that they date from Henry I's reign, whether early or late in the reign, but others feel that they were introduced by King William I (reigned 1066–1087). The precursors of the records probably date to the Anglo-Saxon period, as the historian Pauline Stafford argues that financial records must have been kept in some form during the reigns of Cnut (reigned 1016–1035), Æthelred II (reigned 978–1016), and Edgar the Peaceable (reigned 959–975). There is a reference to
Edward IV of England to the throne in 1470 in an event known as the Readeption of Henry VI, and Edward took refuge in Flanders, part of Burgundy, accompanied by his younger brother Richard, Duke of Gloucester (later King Richard III of England). The Duke of Burgundy had been Edward's brother-in-law since the marriage of Edward's sister Margaret of York to Charles, Duke of Burgundy, on 3 July 1468. The French declared war on Burgundy, despite the fact that Charles was initially unwilling to help Edward. This prompted Charles to give his aid to Edward, and from Burgundy he raised an army to win