Elizabeth de Mortimer was born February 1371 in Usk, Monmouthshire, Wales, United Kingdom to Edmund Mortimer, 3rd Earl of March (c1352-1381) and Philippa Plantagenet, 5th Countess of Ulster (1355-1382) and died 20 April 1417 of unspecified causes. She married Henry Percy (1364-1403) before 10 December 1379 JL . She married Thomas de Camoys, 1st Baron Camoys (c1351-1421) after 3 June 1406 JL . Notable ancestors include Charlemagne (747-814), Henry II of England (1133-1189), William I of England (1027-1087), Hugh Capet (c940-996), Alfred the Great (849-899). Ancestors are from the United Kingdom, England, France, Germany, Russia, Ukraine, Belgium, Ireland, the Netherlands, Spain, Portugal, Hungary, Israel, Italy, Turkey, the Byzantine Empire, Sweden, the United States.


Offspring of Elizabeth de Mortimer and Henry Percy (1364-1403)
Name Birth Death Joined with
Henry Percy, 2nd Earl of Northumberland (c1392-1455) 3 February 1392 22 May 1455 Eleanor Neville (1398-1472)

Elizabeth Percy (1393-1437) 1395 26 October 1436 John Clifford, 7th Baron de Clifford (1388-1421)
Ralph Neville, 2nd Earl of Westmorland (1406-1484)

Offspring of Elizabeth de Mortimer and Thomas de Camoys, 1st Baron Camoys (c1351-1421)
Name Birth Death Joined with
Roger de Camoys (c1406-1473)
Alice de Camoys (1407-1455) 1407 Usk, Monmouthshire, England, United Kingdom 1455 Leonard Hastings (1396-1455)

Common ancestors of Elizabeth Mortimer (1371-1417) and Henry Percy (1364-1403)

  1. Blanche of Artois (1248-1302)
  2. Edmund Crouchback, 1st Earl of Lancaster (1245-1296)
  3. Edmund Mortimer, 2nd Baron Mortimer (1251-1304)
  4. Edmund Mortimer, 2nd Baron Wigmore (1251-1304)
  5. Henry Plantagenet, 3rd Earl of Lancaster (1281-1345)
  6. Isabella de Beauchamp (c1263-bef1307)
  7. Juliana FitzGerald (c1263-1300)
  8. Margaret de Fiennes (aft1269-1333)
  9. Matilda de Chaworth (1282-1322)
  10. Thomas de Clare (1245-1287)

Footnotes (including sources)

‡ General
Ω Birth
  • born on 12 or 13 February 1371