The d'Avalos family, originally of Spanish descent, arrived in Italy in the 15th century, when Iñigo I d'Avalos came with Alfonso V of Aragon during his campaign to reconquer Naples. Later, Iñigo married Antonella d'Aquino, heiress to the marquisate of Pescara, a small but strong feud in southern Italy, therefore establishing the name of the branch, d'Avalos Pescara. The family always maintained a strong bond with the Spanish crown that, in return, conferred them numerous privileges and rights.