He inherited a claim to the Aragonese throne through his maternal grandfather James II, Count of Urgell, who was the last male descendant of the House of Barcelona and heir to the Crown of Aragon by the rights of agnatic primogeniture.
He succeeded to the Aragonese throne via his maternal grandfather, James II, Count of Urgell. He was the last male descendant of the House of Barcelona and heir by agnatic primogeniture rights to the Crown of Aragon.