Bishop of Winchester Saints Birinus and Agilbert. It was transferred to Winchester in AD 660. During the Middle Ages, it was one of the wealthiest English sees and its bishops have included a number of politically prominent Englishmen, notably the 9th century Saint Swithun and medieval magnates including William of Wykeham and Henry of Blois. A cathedral at Dorchester was founded in 634 by the Roman missionary Saint Birinus. It was the seat of a Bishop of the West Saxons; the episcopal see for that kingdom was moved to Winchester in 660 and so the Wessex Bishops of Dorchester were succeeded by the
Diocese of Winchester licensed as an honorary assistant bishop for ministry in the diocese. The Diocese of Winchester is one of the oldest and most important in England. Originally it was the see of the kingdom of Wessex (as such it is sometimes called the "Diocese of Wessex"), with the "cathedra" at Dorchester Cathedral under Saints Birinus (a Roman missionary and the Abbey's founder) and Agilbert. This Wessex diocese covered most of Hampshire, Berkshire, parts of Oxfordshire and Wiltshire. It was transferred to Winchester in AD 660: the episcopal cathedral see was, at some point, at Old Minster, Winchester. Around 704, the diocese