Lanfranc, OSB was a celebrated Italian jurist who renounced his career to become a Benedictine monk at Bec in Normandy. He served successively as prior of Bec Abbey and abbot of St Stephen's Abbey in Caen, Normandy and then as Archbishop of Canterbury in England, following its conquest by William the Conqueror. He is also variously known as Lanfranc of Pavia, Lanfranc of Bec, and Lanfranc of Canterbury.

Matilda of Flanders was Queen of England and Duchess of Normandy by marriage to William the Conqueror, and regent of Normandy during his absences from the duchy. She was the mother of nine children who survived to adulthood, including two kings, William II and Henry I.