Catherine (Katherine or Katheryn) Howard 1524–1542 King of England, Lord and later King of Ireland (1509-1547) Henry VIII Tudor 1491–1547 | | |
| | Lord Edmund Howard 1478–1539 | | | | Thomas Howard 2nd Duke of Norfolk, KG, Earl Marshal 1443–1524 Elizabeth Tilney Countess of Surrey 1445–1497 | | | | John Howard 1st Duke of Norfolk, KG, Earl Marshal 1421–1485 Margaret Chedworth …–1494 | | | | Robert Howard II, Sir 1384–1436 Margaret de Mowbray 1388–1459 | | | | John Howard III, Sir …–1436 | | |
| | | Thomas de Mowbray 1st Duke of Norfolk, KG, Lord Marshall and Earl Marshall 1366–1399 Elizabeth FitzAlan 1366–1425 | | |
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| | | William Moleyns 4th Baron Moleyns …–… |
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