Margaret PERCY was born between 1256 and 1295; died between 1289 and 1350.
Margaret married Sir John DE MOWBRAY, Of Thirsk, Sir between 1275 and 1328. John (son of Sir William DE MOWBRAY) was born on 4 Sep 1286 in Thirsk, North Riding Yorkshire, England; died in Mar 1321 in Executed After Battle Of Boroughbridge, Yorkshire, England; was buried in His Corpse Left Dangling At York For 3 Years.. [Group Sheet] [Family Chart]
Children:
William MOWBRAY was born between 1289 and 1318; died between 1341 and 1381.
1295 - 1350 (~ 33 years)