1451 to 1456, and of Merino Mayor of Asturias from 1461 to 1462. He was also made Master of the Order of Santiago in 1467 by Prince Alfonso, who had been proclaimed king by some Castilian nobles in the Farce of Ávila. In 1463, in Bayonne, Pacheco offered his services to France. With this alliance, France encircled its enemy, the kingdom of Aragón. In gratitude, Louis XI promised the hand of his daughter, Joanna, to the youngest son of Pacheco, Pedro de Portocarrero. The Aragonese king's reaction was to win the friendship of Castile and void the Castilian-French alliance, promising his son Fernando to Pacheco's daughter, Beatriz. In 1466, Pacheco's nephew, Rodrigo Téllez Girón, was elected Master of the Order of Calatrava. Being a minor, Pacheco would be his tutor, giving him the post of coadjutor of the order in 1469. As such, he would have the same powers as the masters had, except in spiritual matters, which should be delegated to persons belonging to the order. Writers of the period claimed he was Master of Calatrava, in addition to Master of Santiago. In 1469, Princess Isabella, half-sister of Henry IV, married Ferdinand of Aragón, against the will of the king and overriding prior diplomatic agreements, starting thus the War of the Castilian Succession, in which Pacheco supported Princess Juana, Henry IV's daughter. Pacheco died on 4 October 1474, in Santa Cruz, near Trujillo, shortly before the death of King Henry IV, of a throat ailment. Before dying, King Henry confirmed Pacheco's son, Diego López Pacheco, as Marquess of Villena. The surname: 'Pacheco' is cited as: 'Pacieco', in the Julius Caesar's chronicle of Spanish war as 'a man very popular in the region'. Nuptials and offspring Don Juan, 1st Duke of Escalona, Grandee of Castile, married three times. His first wife was Angelina de Luna, cousin of the constable Álvaro de Luna. The marriage was nullified in 1442. Soon after, he married María Enríquez Portocarrero (d. 1470), daughter of Pedro (Martín Fernández) Portocarrero y Cabeza de Vaca, the fifth Lord of Moguer, and Beatriz Enriquez, daughter of Alonso de Mendoza and Juana Enríquez. María thus became, in 1445, Marchioness of Villena. The canonical marriage was valid until 1456, when Pope Callistus III authorised the marriage by the church and the legitimation of children born up to that date. The children of this marriage were: Diego López Pacheco y Portocarrero, who