Italian pope from 1831 to 1846; conservative in politics and theology; worked to propagate Catholicism in England and the United States (1765-1846) Synonyms:Gregory XVIBartolomeo Alberto Capillari
the pope who sponsored the introduction of the modern calendar (1572-1585) Synonyms:Gregory XIIIUgo Buoncompagni
the Italian pope from 1406 to 1415 who worked to end the Great Schism and who retired to make it possible (1327-1417) Synonyms:Gregory XIIAngelo Correr
the Italian pope who fought to establish the supremacy of the pope over the Roman Catholic Church and the supremacy of the church over the state (1020-1085) Synonyms:Gregory VIIHildebrand