1st Earl of Cornwall Piers Gaveston

Family/Spouse: Margaret de Clare. Margaret (daughter of 7th Earl of Hertford, 3rd Earl of Gloucester Gilbert de Clare, 7th Earl of Gloucester and Joan "of Acre" Plantagenet) was born on 16 Sep 1292 in Caerphilly Castle, Caerphilly, Glamorganshire, Wales; died on 9 Apr 1342. [Group Sheet] [Family Chart]

1. Joan Gaveston was born on 12 Jan 1312 in York, England.