The first record of a church dedicated to SS. Mary and Peter in Exeter, is that of an abbey church founded by Athelstan. But Sweyn destroyed it seventy years later, and it seems frequently to have been attacked by invaders previous to its destruction. But in 1019 Canute endowed a new church and confirmed by charter their lands and privileges to the monks. This building must have been of some pretensions, for it was given to Leofric for his cathedral church in 1050. It occupied the site of the present Lady Chapel. When Warelwast and Marshall built their Norman church they placed it on the east of the old church, leaving an intervening space. Their nave occupied the site of the present nave, the transeptal towers were the same, but the choir was shorter and probably terminated in an apse flanked by smaller apses at the ends of the choir aisles. Traces of one of these have been found at the end of the third bay of the north choir aisle. Bronscombe and Quivil (see p. 5) began their reconstruction at this end, and by adding the ambulatory and Lady Chapel linked together the sites of the old and new churches. With the episcopate of Leofric, Exeter first assumes the rank of a cathedral city. The sees of Devon and Cornwall had been held together by Lyfing, the last bishop of Crediton. But Crediton, an unfortified "vill," was an easy prey to the Irish, Danes, and other pirates, who devastated the diocese from time to time. Leofric felt the urgent necessity for a change, and fixed on the walled town of Exeter to be his cathedral city. He sent a clerk to the pope asking him to write to the king recommending the change. The king readily consented, and the church of St. Mary and St. Peter was given to the bishop as his cathedral church. The event was clearly regarded as of considerable importance, for at his installation Edward the Confessor "supported his right arm and Queen Eadgytha his left." Archbishops, bishops, and nobles also assisted at the ceremony. Leofric proved a hard-working and wise prelate, and gave generously of lands and moneys to his church. He had found it but poorly furnished, the wardrobe only containing "one worthless priest's dress." He also remembered it in his will, and the great "Liber Exoniensis" was his gift.