The Cathedral of the Holy and Undivided Trinity, begun in 1096, completed 1145, on the site of an ancient Saxon foundations. Embedded in the foundation was a community of Benedictine monks. Built from flint and mortar, faced with Caen Limestone, the Cathedral retains its original design of an apse and ambulatory at the eastern end. The cloisters are the largest monastic cloisters in England. The monastery was dissolved in 1538 when the Prior, William Castleton, "voluntarily" surrendered it to the King's Commisssioners. He was appointed Dean of the Cathedral and the senior monks were appointed as Canons.
