Infante Henry, Duke of Villena

Infante Henry of Aragon (1400 – 15 June 1445), Duke of Villena, 3rd Count of Alburquerque, Count of Ampurias, and Grand Master of the Order of Santiago, was the third son of King Ferdinand I of Aragon and Eleanor of Alburquerque, and a member of the House of Trastamara. His brothers were King Alfonso V of Aragon and King John II of Navarre Henry convened the Cortes, wed Catherine and the already planned wedding between John II and the infantes' sister, Maria, took place. This event would become the origin of a large scale civil war in Castile. He was imprisoned in the Castle of Mora.

Henry and Peter then fled to the Kingdom of Naples, seeking to convince Alfonso to return to Iberia. However, Alfonso was occupied with his own political struggle for power. Alfonso's defeat at the Battle of Ponza and his imprisonment, together with his brothers, meant a major setback for his project.

Henry of Aragon (1445–1522), 1st Duke of Segorbe, whose granddaughter Anne was the last member of the House of Trastámara.