Vilafermosa

Vilafermosa refers to a line of dukes in Aragón, originated by King John II of Aragón whose members bear the family name of Aragó. The first duke was a bastard of John II called Alfons d'Aragó (Alphonse of Aragó).

Dukes:

• Alphonse I until 1485
• Alphonse II 1485–1513
• John I 1513–1528
• Alphons III 1528–1550
• Martí 1550–1581
• Aldonça, sister of Martí; she originated the family of Azlor, titled Dukes of Vilafermosa
• Ferran I 1581–1592
• María Luisa (duchess), daugther of Ferran I; she originated the families named Borja and Aragó-Gurrea, titled Dukes of Vilafermosa, by union to the descents of the last duchess
• Francesc I 1592–1622
• Joana-Lluisa 1622–1652, daugther of Francesc I, she originated the families Borja and Aragó-Gurrea.