The Decretum Gratiani, also known as the Concordia discordantium canonum or Concordantia discordantium canonum or simply as the Decretum, is a collection of Catholic canon law compiled and written in the 12th century as a legal textbook by the jurist known as Gratian. It forms the first part of the collection of six legal texts, which together became known as the Corpus Juris Canonici.

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Not who you're looking for? Others named Gratian: Roman emperor from 367 to 383 · Roman usurper who was proclaimed emperor in 406 in Roman Bri

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