Roger de Montgomery, seigneur of Montgomery

One possible interpretation of this clear misstatement is that a generation has been dropped, and that it was the elder Roger who was son of Hugh and Josseline, though others conclude that Josseline's husband was the elder Roger, the assignment of the name Hugh to her husband being the error.

[1][2] Roger held the lands of Saint-Germain-de-Montgommery and Sainte-Foy-de-Montgommery, both of which show traces of early castles.

[a][4] In c. 1031–1032 he witnessed a charter to the abbey of St. Wandrille by Robert I, Duke of Normandy as vicomte.

[5] Like Duke Robert, Roger began acquiring church properties, among these, c. 1025–27, half the town of Bernay.

[9] At the archbishop’s death in 1037, anarchy broke out in Normandy and among the rebels was Roger de Montgomery, formerly one of Duke Robert's closest companions, who, after being defeated in his own territory, fled to the court of Henry I of France.