Pope Lucius III (born 1097)

Pope Lucius III, born Ubaldo Allucingoli, reigned as head of the Catholic Church and ruler of the Papal States from 1 September 1181 to his death in 1185. Born to an aristocratic family in Lucca, prior to being elected pope, he had a long career as a papal diplomat. His papacy was marked by conflicts with Holy Roman Emperor Frederick I, his exile from Rome, and the initial preparations for the Third Crusade.