 Walter Devereux and his father were appointed on 14 December 1453 to investigate the escape of prisoners in Herefordshire.On 22 May 1455 Richard, 3rd Duke of York, led the Yorkists to victory at the First Battle of St Albans, and captured Henry VI.On 25 May the Duke crowned Henry VI again, and was re-instated as Protector of the Realm.