Events
Date of Birth: unknown.
Place of Birth: unknown.
Date of Death: 1251.
Place of Death: Windsor.
The date is given by Carr (ODNB) and by the Complete Peerage (9:276).
Relationships
Father: Llywelyn Fawr ab Iorwerth Drwyndwn.
This relationship is given by Carr (ODNB), by Richards (p. 54), by Mason (ODNB), and by the Complete Peerage (9:276).
(probable) Mother: Joan, illegitimate daughter of John, king of England.
This relationship is given by Carr (ODNB), by Richards (p. 54, pp. 57-59), and by the Complete Peerage (9:276). Other sources give the mother as Tangwystl ferch Llywarch Goch.
Spouse: Reginald de Briouze (died 1227 or 1228).
This relationship is given by Carr (ODNB), by Richards (p. 54), by Mason (ODNB), and by the Complete Peerage (9:276).
Spouse: Ralph (II) de Mortimer (died 1246). Married in 1230.
This relationship is given by Carr (ODNB), by Richards (p. 55), by Mason (ODNB), and by the Complete Peerage (9:276).
Children (by Ralph): (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 (III) de Mortimer (1231 - 26 October 1282) married Maud de Briouze.
Peter de Mortimer.
John de Mortimer.
Joan de Mortimer married Piers Corbet.
Hugh de Mortimer (died 1273) married Agatha de Ferrers.
References
Carr, A.D. “Llywelyn ab Iorwerth (c. 1173-1240)”, in the Oxford Dictionary of National Biography. (Oxford University Press, 2004).
Cawley, Charles. “Ralph (II) Mortimer” in Medieval Lands: A prosopography of medieval European noble and royal families.
Crump, J.J. “The Mortimer Family and the Making of the March” in Thirteenth Century England VI: Proceedings of the Durham Conferencei 1995 (The Boydell Press).
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).
Mason, J.F.A. “Mortimer, Hugh (II) de (d. 1181?)” in the Oxford Dictionary of National Biography (Oxford University Press, 2004).
Richards, Gwenyth. Welsh Noblewomen in the Thirteenth Century: An Historical Study of Medieval Welsh Law and Gender Roles (The Edwin Mellen Press, 2009).