SANCHO III of Castile | +---------------+--------------+ | | ALFONSO VIII “the Good” FERDINAND II 1158-1214 of Leon | 1157-1188 +------------------+ | | | | LOUIS VIII = BLANCHE BERENGARIA = ALFONSO IX of France | | 1188-1290 | | St LOUIS FERDINAND III King of Castile 1217-1252 King of Castile & Leon 1230-1252 | +------------------------------+-----+ | | ALFONSO X “the Learned” ELEANOR = EDWARD I 1252-1284 of England | SANCHO IV 1284-1295 | FERDINAND IV 1295-1312 | ALFONSO XI 1312-1350 | +----+----------------------------+ | | HENRY II PEDRO (of Trastamara) “the Cruel” 1369-1379 1350-1369 | | JOHN I = ELEANOR CONSTANCE = JOHN of Gaunt 1379-1390 | of Aragon | +-----+---------------------------+ HENRY III FERDINAND I 1390-1406 (elected King of Aragon) | 1412-1416 | | | +------------+ | | | JOHN II JOHN II ALFONSO V 1406-1454 of Aragon of Aragon & Naples | | +-----------------------+ | | | | HENRY IV ISABEL = FERDINAND 1454-1474 of Castile of Aragon 1474-1504 1479-1516 ] [Illustration: 9. THE GUELFS & GHIBELLINES