| Clue | Pope |
| issued the encyclical 'Rerum Novarum' on the status of the working class | |
| the pope who commissioned the Trevi Fountain | |
| first African pope | |
| the last pope to use his own name as his regnal name | |
| the pope who excommunicated Elizabeth I | |
| the pope who commissioned Michelangelo to paint the Sistine Chapel ceiling | |
| the pope reigning at the time of the east-west schism | |
| the pope who crowned Charlemagne | |
| the pope whose election resulted in the Great Schism of the West | |
| the pope who condemned the Templars and began the 'Babylonian Captivity' of the Papacy | |
| the pope who suppressed the Jesuits | |
| the second Medici pope, under whose rule Rome was sacked by imperial troops | |
| the only pope to write his autobiography | |
| pope whose body was dug up and put on trial | |
| the first pope to change his name | |
| the pope who presided over the peak of the Medieval Papacy and excommunicated King John of England | |
| pope when the Visigoths sacked Rome | |
| the pope who ended the 'Babylonian Captivity' | |
| the pope who crowned Napoleon | |
| the short-lived 'Smiling Pope' | |
| the last pope to crown the emperor at Rome | |
| the pope under whom the Council of Trent was completed | |
| the pope who convened the Council of Trent | |
| the first pope to visit the United States | |
| the current pope | |
| dissolute adolescent pope who resigned once and was deposed twice | |
| the oldest pope at the time of his election | |
| the pope who welcomed King Henry IV of France back to the Catholic faith | |
| the city prefect of Rome and a Doctor of the Church | |
| the pope who reformed the calendar | |