According to William of Malmesbury, King Edward's eldest son, the future King Æthelstan, was sent to be brought up at the court of Æthelred and Æthelflæd after Edward remarried in about 900. This is supported by one independent piece of evidence. According to a transcript dating from 1304 in York's archives, in 925 Æthelstan gave a grant of privileges to St Oswald's Priory in Gloucester "according to a pact of paternal piety which formerly he pledged with Æthelred, ealdorman of the people of the Mercians". When King Edward died in 924, Æthelstan initially faced opposition at the West Saxon court, but was accepted as king in Mercia.