Princes in the Tower may have been forewarned of Edward's illness. It is reported that he then went to York Minster to publicly "pledge his loyalty to his new king". The Croyland Chronicle states that, before his death, Edward IV designated his brother Gloucester as Lord Protector. Edward's request may not have mattered, however, since "as the precedent of Henry V showed, the council was not bound to follow the wishes of a dead king". Edward V and Gloucester set out for London from the west and north respectively, meeting at Stony Stratford on 29 April. The following morning, Gloucester arrested Edward's retinue including
Princes in the Tower vise of the Duke of Buckingham". This led Michael Bennett to suggest that possibly some of Richard's prominent supporters, Buckingham and Tyrell, murdered the princes on their own initiative without waiting for Richard's orders. Bennett noted in support of this theory: 'After the King's departure Buckingham was in effective command in the capital, and it is known that when the two men met a month later there was an unholy row between them.' Buckingham is the only person to be named as responsible in a contemporary chronicle other than Richard himself. However, for two reasons he is unlikely to have