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 as no more than propaganda designed to discredit Edward and his heirs. In recent years, the question has been given real consideration; however, there is limited evidence that Richard of York was not the biological father of Edward IV, and that which might exist is subjective and open to interpretation. The claims were based on Edward's appearance and the circumstances surrounding his overseas birth. During his own lifetime, it was noted that Edward showed little resemblance to his father. Unlike his father, he was well over six feet tall, an exceptional height for the age; but notably, his younger brother