Justiciar of Ireland
Events
Date of Birth: about 1206.
The estimated date is given by Carpenter (ODNB).
Date of Death: 23 November 1258.
The date is given by Carpenter (ODNB).
Relationships
Father: Geoffrey fitz Peter (died 1213), fourth earl of Essex.
This relationship is given by Carpenter (ODNB).
Mother: Aveline, daughter of Roger de Clare, earl of Hertford.
This relationship is given by Carpenter (ODNB).
Spouse: Isabel, daughter of Hugh Bigod, earl of Norfolk.
This relationship is given by Carpenter (ODNB), and by the Complete Peerage (12/2:370).
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.)
John fitz John (about 1240 - November 1275) married Margery Basset.
Richard fitz John (died 1297) married Emma.
William fitz John.
Maud (died April 1301) married (1) Gerard de Furnivalle; married (2) William de Beauchamp, earl of Warwick.
Aveline married Walter de Burgh, Lord of Connaught.
Joan (died 1303) married Theobald Butler.
Isabel married Robert de Vespont.
References
Carpenter, D.A. “John fitz Geoffrey (c. 1206 - 1258), rev., in the Oxford Dictionary of National Biography (Oxford University Press, 2004; online edn. January 2008).
Cawley, Charles. “John FitzGeoffrey” 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).
Coss, Peter. “Beauchamp, William (IV) de, ninth earl of Warwick (c. 1238 - 1298)” in the Oxford Dictionary of National Biography (Oxford University Press, 2004).