Events
Date of Birth: unknown.
Place of Birth: unknown.
Date of Death: 27 August, after 1156.
Place of Death: unknown.
The date is given by Cawley.
Relationships
Father: Geoffroy de Châteaudun (died 1100), count of Mortagne, count of Perche.
This relationship is given by Crouch (ODNB), by Thompson (p. 7), and by LoPrete (p. 580).
Mother: Béatrix de Ramerupt.
This relationship is given by LoPrete (p. 580) and by Thompson (p. 7).
Spouse: Henry de Beaumont, earl of Warwick.
This relationship is given by Crouch (ODNB), by LoPrete (p. 580), by Thompson (p. 50), and by the Complete Peerage (12/2:360).
Children:
(Complete source citations for facts about the children on this page are currently outside of the scope of this project. Most information below comes from Cawley.)
Roger de Beaumont, second earl of Warwick, married Gundreda de Warenne.
Robert de Neufbourg (died 1159) married Godechilde de Tosny.
Rotrou (died 25 November 1183).
Geoffroy.
Henri de Neufbourg married Marguerite de Hauteville.
References
Cawley, Charles. “MARGUERITE du Perche” in Medieval Lands: A prosopography of medieval European noble and royal families.
Cokayne, George Edward, and Vicary Gibbs; et al. The complete peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, extant, extinct, or dormant [2nd ed.]. (London: St. Catherine Press, 1910-59).
Crouch, David. “Beaumont, Henry de, first earl of Warwick (d. 1119)” in the Oxford Dictionary of National Biography (Oxford University Press, 2004).
LoPrete, Kimberly A. Adela of Blois: Countess and Lord (c. 1067 - 1137) (Dublin: Four Courts Press, 2007).
Thompson, Kathleen. Power and Border Lordship in Medieval France: The County of the Perche, 1000-1226,(The Boydell Press, 2002).