Sano di Pietro's portrait of Pope Calixtus III , as protector of the city of Siena , commissioned by the Sienese in gratitude for the pope's intervention against Jacopo Piccinino whose breach
St. Callistus I
St. Callixtus I | Biography, Papacy, Legacy, & Facts | Britannica
Pope Callixtus III (1378-1458). Born Alfons de Borja. Pope from 1455-1458. Portrait. Engraving. Colored Stock Photo - Alamy
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File:Pope Callixtus III Siena.jpg - Wikimedia Commons
Joos van Gent -- Pope Calixtus III — Part 5 Louvre
29 Pope Callixtus Photos and Premium High Res Pictures - Getty Images
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akg-images - The Madonna appears to Pope Calixtus III.
The Virgin Mary Appears to Pope Callixtus III, by Sano di Pietro, 15th Century, panel, Stock Photo, Picture And Rights Managed Image. Pic. MDO-18548 | agefotostock
File:Pope Callixtus II.jpg - Wikimedia Commons
Portrait of Pope Alexander VI - Encyclopedia Virginia
St. Callistus I - Saints & Angels - Catholic Online
