In 705 the diocese of Wessex was split between Sherborne and Winchester, and King Ine founded an abbey for St Aldhelm, the first Bishop of Sherborne, which covered, Dorset, Somerset, and Devon. King Alfred the Great's elder brothers, King Æthelbald and King Æthelberht, are buried in the abbey. The large Sherborne diocese lasted until about 909 when it was further sub-divided into three sees, with Sherborne covering Dorset. In 933, King Æthelstan granted land at Sherborne to the nuns of Shaftesbury Abbey under the condition that they would recite the Psalter once a year on All Saints' day and say prayers for the king. The bishop's seat was moved to Old Sarum in 1075 and the church at Sherborne became a Benedictine monastery. In 1437 the Abbey was damaged by fire after tensions between the town and the monastery came to a head, but much of the Norman structure stands today. Following the Dissolution of the Monasteries, in 1539 the vacated monastery building was bought by Sir John Horsey and became the parish church. Sherborne was the centre of a hundred of the same name for many centuries.