Sixtus IV | |
|---|---|
| Papacy began | 9 August 1471 |
| Papacy ended | 12 August 1484 |
| Predecessor | Pope Paul II |
| Successor | Pope Innocent VIII |
| Personal details | |
| Born | Francesco della Rovere 21 July 1414 |
| Died | 12 August 1484 Rome, Italy |
| Other popes named Sixtus | |
Pope Sixtus IV (Latin: Xystus Quartus; 21 July 1414 - 12 August 1484), originally Francesco della Rovere, was an Italian priest of the Roman Catholic Church and the 213th Pope from 1471 until his death in 1484.
He is known for beginning construction of the Sistine Chapel.
Della Rovere was born in Celle Ligure, a town near Savona in Liguria. His family was important.
As a young man, he joined the Franciscan Order. He rose in the order to head of the Franciscans in Liguria.
Della Rovere studied philosophy and theology at the University of Pavia; and he lectured at Padua, Bologna, Pavia, Siena, and Florence.
In 1467, Pope Paul II raised della Rovere to the rank of Cardinal.
He was elected pope on August 9, 1471. He took the name Sixtus because the first day of the conclave which elected him pope was the Feast Day of St. Sixtus.
Pope Sixtus was involved in Italian and European political disputes.
Sixtus ordered the building of the Ponte Sisto (Sistine Bridge) across the Tiber River.
The Vatican Library was enlarged during the reign of Sixtus; and the number of manuscripts grew ten times larger—from 360 during the reign of Pope Nicholas V to 3650.

Media related to Sixtus IV at Wikimedia Commons
| Preceded by Paul II |
Pope 1471–1484 |
Succeeded by Innocent VIII |