innocent iii

noun

1. Giovanni Lotario de’ Conti, 1161?–1216, Italian ecclesiastic: pope 1198–1216.

noun

1. original name Giovanni Lotario de’ Conti. ?1161–1216, pope (1198–1216), under whom the temporal power of the papacy reached its height. He instituted the Fourth Crusade (1202) and a crusade against the Albigenses (1208), and called the fourth Lateran Council (1215)