Earl of Shrewsbury and count of Ponthieu.
Events
Date of Baptism: about 1057.
The date is given by Thompson (ODNB).
Date of Death: 8 May, in or after 1130.
The date is given by Thompson (ODNB).
Relationships
Father: Roger de Montgomery (died 1094), viscount of the Hièmois in Lower Normandy and earl of Shrewsbury.
This relationship is given by Thompson (ODNB) and by Keats-Rohan (1999, p. 399; 2002, p. 309).
Mother: Mabel de Bellême (died 1077), daughter of Guillaume Talvas, lord of Alençon.
This relationship is given by Thompson (ODNB) and by Keats-Rohan (1999, p. 399; 2002, p. 309).
Spouse: Agnès de Ponthieu.
This relationship is given by Thompson (ODNB), by Bauduin, and by Keats-Rohan (2002, p. 309). Agnes left Robert shortly after the birth of their only child, Guillaume Talvas.
Children:
Guillaume Talvas (died 29 June 1171) married Ela (died 1141), daughter of Eudes Borel, duke of Burgundy.
References
Bauduin, Pierrre. La première Normandie (Xe - XIe siècles) (2004).
Keats-Rohan, K.S.B. Domesday People (1999).
Keats-Rohan, Katharine S. B. Domesday Descendants: A Prosopography of Persons Occurring in English Documents 1106 - 1166. (Woodbridge: 2002).
Power, Daniel. The Norman Frontier in the Twelfth and Early Thirteenth Centuries. (Cambridge University Press, 2004).
Thompson, Kathleen. “Bellême, Robert de, earl of Shrewsbury and count of Ponthieu (bap. c. 1057, d. in or after 1130)” in the Oxford Dictionary of National Biography. (Oxford University Press, 2004).