Family: 3rd Lord Percy Henry Percy / Mary Plantagenet (F9053)
m. Sep 1334
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Male
3rd Lord Percy Henry Percy
Birth 1320 Alnwick, Northumberland, England 
Death 18 May 1368 Alnwick, Northumberland, England Burial Alnwick, Northumberland, England Marriage Sep 1334 Lincolnshire, England Father 2nd Baron Percy of Alnwyck Henry Percy | F9050 Group Sheet Mother Idione de Clifford | F9050 Group Sheet
Female
Mary Plantagenet
Birth 1315 Staffordshire, England Death 1 Sep 1362 Alnwick, Northumberland, England Burial 1362 Alnwick, Northumberland, England Father 3rd Earl of Lancaster Henry Plantagenet | F917 Group Sheet Mother Maud de Chaworth | F917 Group Sheet
Male
+ 1st Earl of Northumberland Henry Percy
Birth 10 Nov 1341 Alnwick, Northumberland, England Death 19 Feb 1408 Tadcaster, Yorkshire, England Burial 1408 Alnwick, Northumberland, England Spouse Margaret Neville | F9011 Marriage 12 Jul 1358