| | Emanuel … King of Portugal 1469–1521 Alfonso of Portugal … 1475–1491 | | | | Ferdinand II and V … 1452–1516 | | | | John II (Juan II) … 1397–1479 | | | | | | | | John I (Juan I) … 1358–1390 | | |
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| | | King of Castile and Leon (1406-1454) John II (Juan II) … 1405–1454 | | | | | | | | John I (Juan I) … 1358–1390 | | |
| | | John Plantagenet of Gaunt (Ghent), 1st Duke of Lancaster, KG 1340–1399 Blanche Plantagenet of Lancaster 1341–1369 Constanza … Queen of Castile 1354–1394 Katherine de Roet (Rouet) 1350–1403 | | |
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| | | Edward I … King of Portugal 1391–1438 | | | | John I (João I) … 1358–1453 | | |
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| | | Ferdinand … Duke of Viseu …–… | | | | Edward I … King of Portugal 1391–1438 | | | | John I (João I) … 1358–1453 | | | | Pedro I … King of Portugal 1320–1367 | | |
| | | John Plantagenet of Gaunt (Ghent), 1st Duke of Lancaster, KG 1340–1399 Blanche Plantagenet of Lancaster 1341–1369 Constanza … Queen of Castile 1354–1394 Katherine de Roet (Rouet) 1350–1403 | | |
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