From St. Dunstan’s date until the Norman Conquest the abbey prospered exceedingly, but in 1077 Egelnoth, the last Saxon abbot, was deposed by the Conqueror, and Thurstan, a Norman monk of Caen, installed in his place (Anglo-Saxon Chronicle, 1077).

new abbot at once began to change the local use as to the liturgy and chant for that of Fecamp.

Violent disputes followed, which in 1083 ran so high that the abbot, to enforce obedience, called in armed soldiers, by whom two or three of the monks were slain and many more wounded. After this the king removed Thurstan, who was restored, however, by William Rufus and died as abbot in 1101