Also known as Jill or Gille.
Events
Date of Birth: unknown.
Place of Birth: unknown.
Date of Death: between 22 February 1247 and 5 November 1248.
Place of Death: unknown.
The dates are given by Cawley.
Relationships
Father: Walter de Lacy.
This relationship is given by the Complete Peerage (12B:171-172) and by Veach (p. 206).
Mother: Margaret de Briouze.
Margaret is given as Walter’s wife by Turner (ODBN) and by Veach (p. 105).
Spouse: Richard de Burgh. Married before 21 April 1225.
This relationship is given by Orpen (4:159), by Veach (p. 206), and by the Complete Peerage (12B:172 fn a). It is recorded in Richard’s inquisition post mortem (CIPM vol. 1 no. 19).
Spouse: Richard de Rochester.
This relationship is given by Cawley.
Children (by Richard de Burgh):
Richard II de Burgh (about 1226 - 1248) married Alice.
Walter de Burgh (about 1230 - 1271), earl of Ulster, married Avelina, daughter of John fitz Geoffrey.
William Og de Burgh (died 1270).
Margery de Burgh married Theobald Butler II.
A daughter married Gerald de Prendergast.
Alice de Burgh.
A daughter married Hamon de Valoynes.
References
Cawley, Charles. “EGIDIA de Lacy” 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).
Flanagan, M.T. “Lacy, Walter de (d. 1241)” in The Oxford Dictionary of National Biography (Oxford University Press, 2004).
Orpen, Goddard Henry. Ireland under the Normans: 1169-1216 vol. 1, vol. 2 (Oxford: Clarendon Press, 1911).
Orpen, Goddard Henry. Ireland under the Normans: 1216-1333 vol. 3, vol. 4 (Oxford: Clarendon Press, 1920).
Smith, B. “Burgh, Richard de (died 1243)” in the Oxford Dictionary of National Biography (Oxford University Press, 2004).
Turner, Ralph V. “Briouze, William (III) de (d. 1211)” in The Oxford Dictionary of National Biography (Oxford University Press, 2004).
Veach, Colin. Lordship in Four Realms: The Lacy Family, 1166-1241 (Manchester University Press, 2014).