Important Online Catholic Resources - Pope Calixtus III, original inaugural oath: “I, Pope Calixtus III., promise and vow to the Holy Trinity, Father, Son, and Holy Ghost, to the Ever-Virgin Mother of
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Excerpt from a mosaic in the church Santa Maria in Trastevere in Rome. Pope Innocent II stands at the far left, beside Sts. Lawrence and Calixtus. The Pope is depicted as
![History of the ecumenical councils of Rome. Pope Calixtus II (1050-1124). Pope between 1119 and 1124. Published in Paris, engraving, 1869 Stock Photo - Alamy History of the ecumenical councils of Rome. Pope Calixtus II (1050-1124). Pope between 1119 and 1124. Published in Paris, engraving, 1869 Stock Photo - Alamy](https://c8.alamy.com/comp/P5TCRX/history-of-the-ecumenical-councils-of-rome-pope-calixtus-ii-1050-1124-pope-between-1119-and-1124-published-in-paris-engraving-1869-P5TCRX.jpg)