 Cannae was destroyed in 1083 by Robert Guiscard, with the exception of the cathedral and the episcopal residence.It had bishops in the sixth century, for Gregory the Great entrusted the see to the care of the bishop of Siponto; its bishops are again mentioned after the tenth century.In 1534 Cannae was separated from Nazareth and united to the diocese of Monteverde, but in 1552 the united dioceses were incorporated with Nazareth.