On Saturday, Pope John XXIII and Pope John Paul II will both be named saints. In light of their canonization, take a look back at a few of the notable, unusual and surprising moments throughout papal history.
Pope Sergius III (January 904-April 911) -- He is believed to be the only pope who ordered the murder of another pope with the strangulation death of Antipope Christopher. He's also rumored to have fathered a son with the daughter of a count who helped the pope expand into more territory. His son went on to become pope himself.
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