Pope Callixtus III (209º): Biography, Pontificate & Legacy

Who Was Pope Callixtus III?

Pope Callixtus III — 209º in the Catholic list — reigned 8 April 1455–6 August 1458 during the Renaissance papacy. Subject of the Kingdom of Valencia(and therefore subject of the Crown of Aragon). This Guide Catholic profile gathers background, major acts, and legacy so you can read Callixtus III beside neighboring pontiffs.

Early Life & Background

Before election he was known as Alfons de Borja. Born 31 December 1378 Xàtiva, Kingdom of Valencia, he entered a world shaped by politics and piety very different from today's global Church.

Historical Context

Callixtus III (#undefined) sat on Peter's chair amid artistic patronage, political intrigue, Reformation shocks, and the widening world of the Americas.

Pontificate & Key Events

The pontificate (8 April 1455–6 August 1458) centered on governance during the Renaissance papacy. First Valencian pope. Ordered the retrial of Joan of Arc, leading to her vindication. Elevated his nephews to cardinals, one of whom later became Pope Alexander VI.

Papal Acts & Achievements

Acts associated with Callixtus III (#209, 8 April 1455–6 August 1458) still draw historians and Catholics who want more than a one-line summary. His reign remains a link in the succession now counted at 267 popes.

Key Highlights

• 209th pope of the Catholic Church
• Pontificate: 8 April 1455–6 August 1458
• First Valencian pope.
• Shepherded the Church during the Renaissance papacy
• Successor of St. Peter in the official Catholic list

Legacy in the Catholic Church

Callixtus III remains pope 209º in the Annuario Pontificio. Set against the Renaissance papacy, Callixtus III's choices show both the limits of any one pontiff and the continuity of the office he held.

Why Catholics Study This Pope Today

Place Callixtus III on your mental map: 209º successor of Peter, reigning 8 April 1455–6 August 1458, formed by the Renaissance papacy. Start with the concrete record: Instituted the Feast of the Transfiguration to be celebrated on 6 August. First Valencian pope. Then step back to the full list of 267 popes to see where Callixtus III sits between crisis and consolidation.

Place in the Line of Succession

Callixtus III followed Pope Nicholas V (208º, 6 March 1447–24 March 1455) after a transition shaped by the politics and piety of their shared century. He was followed by Pope Pius II (210º, 19 August 1458–15 August 1464), whose biography continues the chain on Guide Catholic. For the full chronological map, see our complete list of all 267 popes — then read neighboring biographies for contrast, not only continuity.