Events
Date of Birth: unknown.
Place of Birth: unknown.
Date of Death: 1300.
The date is given by Frame (ODNB).
Relationships
Father: Maurice fitz Maurice Fitzgerald (died 1286), Lord Justice of Ireland.
This relationship is given by Frame (ODNB), by Altschul, and by the Complete Peerage (7:200).
(probable) Mother: Matilda, daughter of Gerald de Prendergast.
Many sources give Emeline, daughter of Stephen Longespée, as the mother. Phillips (Kerry, and Kerry and Lixnaw) explains why this can’t be true. The relationship has been discussed on soc.genealogy.medieval.
Spouse: Thomas de Clare (died 1287).
This relationship is given by Frame (ODNB) and by Altschul.
Spouse: Adam of Creting.
This relationship is given by Frame (ODNB).
Children (by Thomas):
(Complete source citations for facts about the children on this page are currently outside of the scope of this project.)
Gilbert de Clare (3 February 1281 - 1308) married Isabella.
Richard de Clare (died 1318) married Joanna.
Margaret de Clare (about 1286 - 1333) married (1) Gilbert de Umfreville; married (2) Sir Bartholomew Badlesmere.
Matilda de Clare (died 1327) married Robert Clifford, Lord Clifford on 12 November 1295.
References
Altschul, Michael. A Baronial Family in Medieval England: The Clares 1217-1314 (Baltimore: The Johns Hopkins Press, 1965).
Cawley, Charles. “Juliana” 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).
Frame, Robin. “Fitzgerald, Maurice fitz Maurice (d. 1286)” in the Oxford Dictionary of National Biography (Oxford University Press, 2004; online edn, October 2005).
Frame, Robin. “Clare, Thomas de (1244x7-1287)” in the Oxford Dictionary of National Biography (Oxford University Press, 2004; online edn, October 2005).
Phillips, Chris. “Some corrections and additions to the Complete Peerage.”