Baroness of Percy Mary Plantagenet

1319 - 1362  (43 years)

• Name	Baroness of Percy Mary Plantagenet
  Birth	1319	Tutbury, Staffordshire, England
  Gender	Female
  Death	1 Sep 1362	Berwick Castle, Berwick, Wiltshire, England
  Person ID	I20566	My Genealogy
  Last Modified	16 May 2026

  
  

  Father	Earl Henry de Percy, III,   b. 6 Feb 1301, Leckonfield, East Riding, Yorkshire, England d. 25 Feb 1353, Alnwick Castle, Alnwick, Northumberland, England (Age 52 years)
  Relationship	natural
  Mother	Countess of Percy Ideona de Clifford,   b. 1303, Castle, Clifford, Hereford, England d. 24 Aug 1365 (Age 62 years)
  Relationship	natural
  Marriage	1314	Yorshire, England
  Family ID	F3612	Group Sheet  |  Family Chart

  
  

  Family	12 Baron Sir Henry de Percy, IV,   b. 1322, Castle, Alnwick, Northumberland, England d. 13 May 1368, Berwick Castle, Berwick, Wiltshire, England (Age 46 years)
  Marriage	1344	Tutbury, Staffordshire, England
  Children	1. 13 Marshall of England Henry de Percy, V,   b. 10 Nov 1345, Carlisle Castle, Carlisle, Cumberland, England d. 19 Feb 1408, Branham, Moor, England (Age 62 years)  [Father: natural]  [Mother: natural]
  Family ID	F5728	Group Sheet  |  Family Chart
  Last Modified	16 May 2026