Anglo-Saxon Chronicle. 676. This year, in which Hedda succeeded to his bishopric, Escwin King Wessex died; and Centwin obtained the government of the West-Saxons. Centwin was the son of Cynegils, Cynegils of Ceolwulf. Ethelred, king of the Mercians, in the meantime, overran the land of Kent.
In 676 Bishop Hedda was appointed Bishop of Winchester.
Anglo-Saxon Chronicle. 703. This year died Bishop Hedda, having held the see of Winchester twenty-seven winters.
Around 07 Jul 705 Bishop Hedda died.