Family: Henry DE PERCY, 3rd Lord Percy of Alnwick / Mary PLANTAGENET, of Lancaster (F37168)
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Male
Henry DE PERCY, 3rd Lord Percy of Alnwick
Birth 1320 Death 18 May 1368 Alnwick Castle, Northumberland, England 
Burial Alnwick Abbey Marriage Other Spouse Joan ORREBY | F37181 Marriage Father Henry DE PERCY, K.G., 9th Baron Percy of Topcliffe, 2nd Lord Percy of Alnwick | F22924 Group Sheet Mother Idoine DE CLIFFORD | F22924 Group Sheet
Female
Mary PLANTAGENET, of Lancaster
Birth Death 1362 Burial Father Henry PLANTAGENET, 3rd Earl of Lancaster | F1456 Group Sheet Mother Maud DE CHAWORTH | F1456 Group Sheet
Male
Henry PERCY, 1st Earl of Northumberland, 4th Baron Percy, KG
Birth 10 Nov 1341 Alnwick Castle, Northumberland, England Death 20 Feb 1408 Bramham Moor, Yorkshire, England Burial Spouse Margaret NEVILLE | F37166 Marriage 1358 Spouse Maud LUCY, Baroness Lucy | F37183 Marriage 1381
Male
Sir Thomas PERCY, 1st Earl of Worcester
Birth 1343 Death 23 Jul 1403 Burial the Church of Saint Peter and Saint Paul , Shrewsbury, Shropshire, England