[2] The first prior of St Osyth's was William de Corbeil, who was elected archbishop of Canterbury in 1123 and who crowned King Stephen in 1135.

[4] In the Gesta Pontificum Anglorum, William of Malmesbury spoke in praise of the piety and learning of the canons at St Osyth's in the twelfth century.

[5] One of the second generation of canons there was William de Vere, later bishop of Hereford, who wrote a Latin Life of St Osyth,[6] in which he mentions that his mother Adeliza, daughter of Gilbert fitz Richard of Clare, had been a corrodian at the abbey for twenty years of her widowhood.

A charter of King Henry II confirmed the right of the canons of St Osyth's to elect their abbot and to hold a market every Sunday at Chich in the later 12th century.

John Depyng, prior of St. Botolph's was made abbot of St Osyth's in 1434, and took with him goods of considerable value belonging to the priory.