No trace now remains of the Anglo-Saxon monastery founded in 673 and refounded in 970. After the Norman Conquest in 1066, and the putting down of the local rebellion of Hereward the Wake immediately after, the first Norman Abbot began to rebuild the Abbey on a new and larger scale.
Parts of the Cathedral Church belong to these years, but the buildings of the monastery you can now see were all additions later in the Middle Ages.
From 1109 onwards the church was also the seat of a bishop of the new bishopric of Ely.
The oldest standing buildings are the prior’s house with its vaulted undercroft, and the central part of the infirmary complex, both built in the 12th century.
Within the cathedral is the Stained Glass Museum.