Elizabeth Percy was born circa 1395 to Henry Percy (1364-1403) and Elizabeth Mortimer (1371-1417) and died 26 October 1436 of unspecified causes. She married John Clifford, 7th Baron de Clifford (1388-1421) . She married Ralph Neville, 2nd Earl of Westmorland (1406-1484) 1426 JL . Alfred the Great (849-899)/s, Charlemagne (747-814)/s, Henry II of England (1133-1189)/s, Hugh Capet (c940-996)/s, William I of England (1027-1087)/s.
|Offspring of Elizabeth Percy and John Clifford, 7th Baron de Clifford (1388-1421)|
|Thomas Clifford, 8th Baron de Clifford (1414-1455)||26 March 1414||22 May 1455||Joan Dacre (c1418-bef1455)|
|Mary Clifford (c1416-1478)||1416 Appleby, Westmoreland, England, United Kingdom||4 October 1478||Philip Wentworth (1424-1464)|
|Henry Clifford (c1418-aft1460)|
|Offspring of Elizabeth Percy and Ralph Neville, 2nd Earl of Westmorland (1406-1484)|
|John Neville (-1450)|