Juan Castellar y de Borja (1441–1505) (called the Cardinal of Trani and the Cardinal of Monreale) was a Spanish Roman Catholic bishop and cardinal.
Juan Castellar y de Borja was born in Valencia in late 1441, the son of Galcerán de Castellar, señor de Picassent and Alcàsser, and his wife Bernardona Borja.[1] The Castellar family was allied with the Borja family.[1] He was a cousin of Cardinal Juan de Borja Lanzol de Romaní, el mayor.[1]
Early in his career, he became a canon of the cathedral chapter of Seville Cathedral. He later also became a canon of Naples Cathedral, the Cathedral of Toledo, and Burgos Cathedral. Moving to Rome, he became a protonotary apostolic.[1]
On 23 August 1493 he was elected Archbishop of Trani. In the same year, Pope Alexander VI named him governor of Perugia.[2] On 17 February 1502 he was one of six cardinals and six prelates who accompanied the pope on his trip to Piombino.[1]
Pope Alexander VI made Castellar a cardinal priest in the consistory of 31 May 1503. He received the titular church of Santa Maria in Trastevere on 12 June 1503.[1]
On 9 August 1503 he was transferred to the metropolitan see of Monreale. He occupied the post until his death.[1]
He participated in both the papal conclave of September 1503 that elected Pope Pius III and the papal conclave of October 1503 that elected Pope Julius II.[1]
On 7 July 1504 he left Rome to visit Ferdinand II of Aragon. He became ill in Valencia, and after several months, died on 1 January 1505 of a kidney ailment. He was buried in the Augustinian convent in Valencia.[1]
