Mary Plantagenet of Lancaster, Baroness Percy

Abt 1320 - 1362  (42 years)

• Name	Mary Plantagenet of Lancaster
  Suffix	Baroness Percy
  Birth	Abt 1320
  Gender	Female
  Reference Number	18074
  Death	1 Sep 1362
  Person ID	I18074	KLD Genealogy
  Last Modified	16 Jun 2026

  
  

  Father	Henry Plantagenet of Lancaster, 3rd Earl of Lancaster 3rd Earl of Leicester,   b. Abt 1281   d. 22 Sep 1345 (Age 64 years)
  Relationship	bio
  Mother	Maud Chaworth, Countess of Lancaster,   b. 2 Feb 1282   d. 3 Dec 1322 (Age 40 years)
  Relationship	bio
  Family ID	F6583	Group Sheet  |  Family Chart

  
  

  Family	Henry Percy, 3rd Baron Percy of Alnwick Warden of the Marches High Sheriff of Northumberland,   b. Abt 1321   d. 1368, Alnwick Castle, Northumberland, England (Age 47 years)
  Children	1. Thomas Percy  [Father: bio]  [Mother: bio] > 2. Henry Percy, 1st Earl of Northumberland 4th Baron Percy King of Mann KG Lord Marshal,   b. 10 Nov 1341   d. 20 Feb 1408 (Age 66 years)  [Father: bio]  [Mother: bio]
  Family ID	F6577	Group Sheet  |  Family Chart
  Last Modified	16 Jun 2026