According to William of Malmesbury, Æthelstan was thirty years old when he became king in 924, which would mean that he was born around 894 and Ecgwynn's marriage to Edward the Elder took place in about 893. By this time, Edward had reached majority and one of his priorities would have been to secure the continuation of Alfred's line. No sources report what became of Ecgwynn afterwards, though two events are directly relevant. First, William writes that on King Alfred's instigation, Æthelstan was sent to be raised at the Mercian court of his aunt Æthelflæd. Second, it is known that by 901, Edward had taken to wife Ælfflæd, a daughter of ealdorman Æthelhelm. The reason for this decision is unclear. It may simply have been that Ecgwynn was no longer alive in 899 and that it was therefore only natural that Edward looked for another bride. It is also possible that Edward's first marriage was thought to lack the political import that was needed to buttress his position as king of the English. Alfred may have been responsible for arranging the first marriage and so his death in 899 would have afforded Edward and his counsellors room to follow a different course.