• Married (1): Between 1040 and 1054
• Married (2): After 1082
• Died: 27 Jul 1094, Shrewsbury, Shropshire, England
• Buried: Abbey of St Peter & St Paul, Shrewsbury, Shropshire, England

  Research Notes:

Guillaume of Jumièges names “Hugo et Robertus, Rogerius et Willelmus atque Gislebertus” as the five sons of “Rogeri[us] de Montegumeri“, adding that they had remained in Normandy during their father’s exile. The Chronicle of Alberic de Trois-Fontaines names "Rogerum de Montgommeri" as son of "Iosceline". His father's name is confirmed by the charter dated to [1079/82] under which "Roger ex Northmannis Northmannus son of Roger" donated property to St Martin, Troarn for the soul of "his wife Mabel lately deceased".

He succeeded his father as Seigneur de Montgommery, Vicomte de l'Hiémois. Orderic Vitalis records that “Rogerius de Monte-Gomeri, Oximensis vicecomes” expelled the canons from Troarn, where they had been installed by “Rogerius pater suus”. "…Rogerii de Monte Gomerici…" witnessed the charter dated to [1055] under which Guillaume II Duke of Normandy donated property to the abbey of Marmoutier. "…Willelmi filii Osberti, Rotgerii de Monte Golmerii, Richardis vicecomitis Abrinchensis…" witnessed the charter dated [1055/56] under which Guillaume II Duke of Normandy "in pago…Constantino, villam…Flotomannum" to Saint-Florent de Saumur. Orderic Vitalis names “...Rogerius de Bellomonte et Rogerius de Monte-Gomerici...” among the leading lords under Guillaume II Duke of Normandy. A charter dated 1066 records his pardoning the abbey of Sainte-Trinité de Rouen for a calumny. The Brevis Relatio de Origine Willelmi Conquestoris records that "Rogero de Montgumeri" contributed 60 ships towards the invasion of England in 1066. He remained in Normandy at the time of the Norman invasion of England in 1066 to assist Duchess Mathilde to govern the duchy, but accompanied King William I to England in Dec 1067: Orderic Vitalis records that, when King William returned to England, 6 Dec 1067, he appointed “Mathildi conjugi suæ filioque suo Rodberto adolescenti” to govern Normandy (“principatum Neustriæ”), adding that the king took with him “Rogerium de Monte-Gomerici” whom he had appointed as “tutorem Normanniæ...cum sua conjuge” when he had left for England for the first time and that King William granted “primo Cicestram et Arundellum...post aliquot tempus Scrobesburiensem” to Roger.

[Earl] of Chester and Arundel. Earl of Shrewsbury. Orderic Vitalis records that “Rogerius de Monte-Gomerici”, after the fall of “Geroiana progenies”, held “totum patrimonium Excalfoii et Monasterioli” for about 26 years. The Chronique de Normandie, based on le Roman de Rou, records that William I King of England made "le Conte Rogier de Montgomery et Guillaume le filz Osber" his two "Marechaulx d’Engleterre" after the conquest of England. He became Seigneur d’Alençon, de iure uxoris, after the death in 1070 of her paternal uncle Ives Bishop of Seés. As "Rogerus comes Salosberiensis" he witnessed a charter of King William I giving the barony of Plessis to the church of Bayeux dated 24 Dec 1074. "Rogerius comes…et sua uxor Mabilia atque suus filius Rotbertus" donated property to Notre-Dame de Bellême by charter dated to [1070/79]. Orderic Vitalis records that “V Kal Mar” in 1083 “Rogerius comes” declared to “Guarinum vicecomitem et Picotem de Saia cæterosque proceres suos” his intention of founding the abbey of Saint-Pierre. He allied himself with Robert Duke of Normandy at the time of the latter's rebellion against King William II in 1089. Guillaume of Jumièges records that “Rogerius de Monte-gumerii pater Roberti de Belesmo” founded “in honorem sancti Martini ecclesias duas, unam in Sagiensis urbis suburbio, alteram in vico suo Troardo” and “tertiam...apud Almanachias ad opus sanctiomonialium”.

Orderic Vitalis records the death “VI Kal Aug” in 1094 “Rogerius...comes” and his burial at Shrewsbury abbey. ¹