John de Lacy, 1st Earl of Lincoln was born circa 1192 to Roger de Lacy (1170-1211) and Matilda de Clere and died 22 July 1240 of unspecified causes.
|Offspring of John Lacy and Margaret de Quincy (1206-1266)|
|Maud de Lacy, Countess of Lincoln (1223-c1287)||25 January 1223||1287|| Richard de Clare, 6th Earl of Hertford (1222-1262)|
|Edmund de Lacy, 2nd Earl of Lincoln (c1227-1258)|
- William Allen Shade 03:25, 3 August 2009 (UTC)