https://en.wikipedia.org/wiki/Pope_Lucius_III

Pope Lucius III (c. 1097 – 25 November 1185), born Ubaldo Allucingoli, reigned from 1 September 1181 to his death. Born of an aristocratic family of 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.