John Paul II became the first pope to visit the Republic of Ireland.
Source
King Henry VIII was forbidden to remarry in a letter sent to him by Pope Clement VII.
Henry VIII declared his marriage to Catherine of Aragon officially null and void, despite Pope Clement VII's refusal to allow it.
Mother Teresa was declared a saint by Pope Francis during a ceremony at the Vatican.
Pope Paul III excommunicated King Henry VIII of England.
Pope Paschal I crowned Lothair I as the Emperor of Italy.