'''Gratian''' can refer to: *Gratian_the_Elder, a 4th_century Roman soldier. Father of the emperors Valens and Valentinian and grandfather of: *Gratian the later fourth century Roman_Emperor *Gratian, a 5th_century Romano-British usurper and emperor. *Pope_Gregory_VI (died 1047), whose name was John Gratian before he assumed the papacy. *Gratian, a 12th_century Jurist from Bologna. {{disambig}} De:Gratian_(Begriffsklärung) Es:Graciano Pl:Gracjan