Pedro Girón Acuña Pacheco (1423–1466), was Master of the

Order of Calatrava The Order of Calatrava (, ) was one of the Spanish military orders, four Spanish military orders and the first Military order (society), military order founded in Kingdom of Castile, Castile, but the second to receive papal approval. The papal bu ...

(1445–1466), 1st Lord of Ureña and Osuna, and an important political figure at the court of

Henry IV of Castile Henry IV of Castile (Spanish language, Castilian: ''Enrique IV''; 5 January 1425 – 11 December 1474), nicknamed the Impotent, was King of Kingdom of Castile, Castile and Kingdom of León, León and the last of the weak late-medieval kings of Ca ...

. He was the younger brother of Juan Pacheco and nephew of Alfonso Carrillo de Acuña,

Archbishop of Toledo The Archdiocese of Toledo () is a Latin Church archdiocese of the Catholic Church located in Spain.

. In the trail of his brother, and a confidant of the young prince and later King

, he became one of the most powerful and rich persons in the Castilian court. At the age of 22 he became Master of the military Order of Calatrava, and received in 1448 the strategic town of Peñafiel, where he built the Peñafiel Castle. When Prince Henry became King in 1454, Pedro received several towns and titles including Lord of Osuna, which would become the powerful House of Osuna. Together with his brother and uncle, he was the de facto ruler of Castile, until 1461 when

Beltrán de la Cueva Beltrán is a Spanish-Italian surname (or given male name) of initially Italian origin with the first record of the surname found at the University of Bologna. Centuries later, the surname primarily came to be found in the Catalan-speaking region of ...

displaced him as Henry IV's confidant. As a reaction the brothers and their allies proclaimed the King's half-brother Prince Alfonso as new King, in an event known as the

Farce of Ávila On 5 June 1465, in a location around Ávila, a group of Castilian noblemen deposed King Henry IV of Castile in effigy, and instead proclaimed his half-brother Prince Alfonso, better known as "Alfonso the Innocent", as king. This ceremony became ...

. King Henry IV then offered the hand of his half-sister Isabella in marriage to Pedro. But when Pedro travelled to Madrid at the head of a 3,000-strong force to negotiate the marriage, he suddenly fell ill and died.

Children

As Master of the Order of Calatrava, Pedro was not allowed to marry. Despite this, he had four children with Inés de las Casas, who were legitimated by

Pope Pius II Pope Pius II (, ), born Enea Silvio Bartolomeo Piccolomini (; 18 October 1405 – 14 August 1464), was head of the Catholic Church and ruler of the Papal States from 19 August 1458 to his death in 1464. Aeneas Silvius was an author, diplomat, ...

in 1459, with the support of King Henry IV. *

Alfonso Téllez-Girón, 1st Count of Ureña Alfonso Téllez-Girón, 1st Count of Ureña, (in full, ), (c.1454–1469), was a Spanish nobleman. Alfonso Téllez-Girón was born in Moral de Calatrava, the eldest natural son of Pedro Girón, 1st Lord of Osuna and of Inés de las Casas. He was ...

(c. 1454 – 1469), died at the age of 16. * Rodrigo (1456–1482), succeeded his father as Master of the Order of Calatrava. Died in battle during the

War of the Castilian Succession The War of the Castilian Succession was the military conflict contested from 1475 to 1479 for the succession of the Crown of Castile fought between the supporters of Joanna 'la Beltraneja', reputed daughter of the late monarch Henry IV of Castil ...

. *

Juan Téllez-Girón, 2nd Count of Ureña Juan Téllez-Girón, 2nd Count of Ureña (in full, ) (c. 1456 – 21 May 1528) was a Spanish nobleman. Juan Téllez-Girón was the third natural son of Pedro Girón, 1st Lord of Osuna and of Inés de las Casas. The children were legitimated by Pap ...

(c. 1456 – 1528). Had issue. * María {{DEFAULTSORT:Girón Acuña Pacheco, Pedro 1423 births 1466 deaths People from the Crown of Castile

Pedro Pedro is a masculine given name. Pedro is the Spanish, Portuguese, and Galician name for ''Peter''. Its French equivalent is Pierre while its English and Germanic form is Peter. The counterpart patronymic surname of the name Pedro, meanin ...

Grand masters of the Order of Calatrava