Coenred's reign is poorly documented, but a contemporary source records that he faced attacks from the Welsh. Coenred is not known to have married or had children, although later chronicles describe him as an ancestor of Wigstan, a 9th-century Mercian king. In 709, Coenred abdicated and went on pilgrimage to Rome, where he remained as a monk until his death. In the view of his contemporary, Bede, Coenred "who had ruled the kingdom of Mercia for some time and very nobly, with still greater nobility renounced the throne of his kingdom". Æthelred's son Ceolred succeeded Coenred as king of Mercia.