Notley Abbey was founded in between 1154 and 1164 by the second Earl of Buckingham, Walter Giffard and his wife, Ermengard. The house was dedicated to the Virgin Mary and Saint John the Baptist and was made to house Augustinian canons. Despite its lack of historical fame, the Notley Abbey was one of the largest and richest Augustinian monasteries in the Oxford region. Notley Abbey was originally meant to fuse the lifestyles of monastic and apostolic people, forming a middle ground between monks and secular clergy; however, the monastic lifestyle dominated. The fact that Notley Abbey was constructed at Earl's park in Long Crendon suggests that Augustinians were becoming purely monastic by 1160.