Events
Date of Birth: about 1192.
The estimated date is given by Vincent (ODNB) and by the Complete Peerage (7:676), which notes that John obtained livery of his inheritance in July 1213.
Date of Death: 22 July 1240.
The date is given by Vincent (ODNB) and by the Complete Peerage (7:679). John died after a long illness.
Place of Burial: in the monks’ choir at Stanlaw. His body was later moved to Whalley.
The place is given by Vincent (ODNB) and by the Complete Peerage (7:679).
Relationships
Father: Roger de Lacy (died 1211), constable of Chester.
This relationship is given by Vincent (ODNB), by Wightman, and by the Complete Peerage (7:676).
Mother: Maud de Clere.
This relationship is given by Vincent (ODNB), who notes that it is an error to identify her as Matilda de Clare.
Spouse: Alice, daughter of Gilbert de l’Aigle.
This relationship is given by Vincent (ODNB) and by the Complete Peerage (7:679). Vincent seems to express some doubt about the reliability of the 15th century source for this marriage.
Spouse: Margaret (died 1266), daughter of Robert de Quincy.
This relationship is given by Vincent (ODNB), by Ward (ODNB), and by the Complete Peerage (7:679).
Children (by Margaret):
Maud married Richard de Clare, earl of Gloucester and of Hereford.
Edmund (1230 - 2 June 1258) married Alasia, daughter of Manfredo (III), marquis of Saluzzo.
2 other daughters.
References
Altschul, Michael. “Clare, Richard de, sixth earl of Gloucester and fifth earl of Hertford (1222-1262)” in the Oxford Dictionary of National Biography (Oxford University Press, 2004; online edn, January 2008).
Cawley, Charles. “John 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).
Vincent, Nicholas. “Lacy, John de, third earl of Lincoln (c. 1192 - 1240)” in the Oxford Dictionary of National Biography (Oxford University Press, 2004; online edn, September 2010).
Ward, Jennifer C. “Lacy, Margaret de, countess of Lincoln (d. 1266)” in the Oxford Dictionary of National Biography (Oxford University Press, 2004; online edn, January 2008).
Wightman, W.E. The Lacy Family in England and Normandy 1066-1194 (Oxford at the Clarendon Press: 1966).