Aragó is a family name that descended from the kings of the Aragonese Crown. The kings never used any family name. All lines are now exhausted. The name originated from the rivers Aragón and Aragón Subordán in northern Spain.
Lines
Originated by four sons of James I of Aragon Mallorca, created by the king James II of Majorca. Hixar, created by Peter, lord of Hixar. Xerica, created by Peter, lord of Xerica. Castre, created by Ferran lord of Castre.
Originated by a son of James II of Aragon Empúries, created by Ramón Berenguer I, count of Empúries Prades-Gandia-Villena, created by Peter I, Count of Prades (later dukes)
Originated by a son of Alfonso III of Aragon Urgell, created by James I count of Urgell
Originated by a son of Peter II of Aragon Avola, created by Frederic II king of Sicily, they were lords (later Marquiss) of Avola and Terranova.
Originated by a son of Ferran I of Aragon Segorbe, created by Henry I lord of Segorbe (Later dukes)
Originated by a son of Alfonso IV of Aragon Naples, created by Ferdinand I king of Naples
Originated by a son of Ferdinand I of Naples Montalto, created by Ferdinand, duke of Montalto
Originated by a son of John II of Aragon Vilafermosa, created by Alphonse, duke of Vilafermosa
Originated by a son of Ferran II of Aragon Argavieso-Ballobar, created by Alfonso (archbishop of Zaragoza) and their descendants
References