| | Margaret le Plaiz 1365–1391 Sir John “Crusader” Howard 1372–1437 | | | | Sir Robert Howard 1336–1388 Margaret de Scales 1339–1416 | | | | Sir Admiral John Howard 1310–1347 | | | | Sir John Howard 1276–1331 Joan de Cornwall 1286–1342 | | | | Richard “Earl of Cornwall” de Cornwall 1252–1280 | | |
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