Events
Date of Birth: about 1180.
The date is given by Archer (ODNB) and by Altschul. The Complete Peerage (5:694) states that Gilbert was “probably” born around 1180.
Date of Death: 23 October 1230.
The date is given by Archer (ODNB). The Complete Peerage (5:695) gives 25 October 1230.
Place of Death: Penros.
The place is given by the Complete Peerage (5:695).
Date of Burial: the Sunday following St Martin’s day.
Place of Burial: Tewkesbury Abbey.
The date and place are given by Archer (ODNB).
Relationships
Father: Richard de Clare (died 1217), earl of Hertford.
This relationship is given by Archer (ODNB), by Altschul, and by the Complete Peerage (5:694; 6:503).
Mother: Amicia (died 1225), daughter of William, earl of Gloucester.
This relationship is given by Archer (ODNB), by Altschul, and by the Complete Peerage (5:694; 6:503).
Spouse: Isabel, daughter of William (I) Marshal, earl of Pembroke. Married 1214.
This relationship is given by Archer (ODNB), by Altschul, and by the Complete Peerage (5:694).
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.)
Amicia de Clare (1220 - 1283) married Baldwin de Reviers, earl of Devon.
Richard de Clare (1222 - 15 July 1262), earl of Gloucester and of Hertford, married (1) Margaret, daughter of Hubert de Burgh; married (2) Maud, daughter of John de Lacy, earl of Lincoln in 1238.
Agnes de Clare.
Isabel de Clare (2 November 1226 - after 10 July 1264) married Robert (V) de Brus of Annandale.
William de Clare (18 May 1228 - July 1258).
Gilbert de Clare (12 September 1229 - after 1244).
References
Altschul, Michael. A Baronial Family in Medieval England: The Clares 1217-1314 (Baltimore: The Johns Hopkins Press, 1965).
Archer, T.A.. “Clare, Gilbert de, fifth earl of Gloucester and fourth earl of Hertford (c. 1180-1230)”, rev. Michael Altshul, in the Oxford Dictionary of National Biography (Oxford University Press, 2004; online edn, October 2005).
Cawley, Charles. “Gilbert de Clare” 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).