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Gratian was the eldest son of Valentinian I and a co-ruler with his half-brother Valentinian II and his uncle Valens. He fought against the Alamanni, the Goths and the usurper Magnus Maximus, and promoted Nicene Christianity.
Decretum Gratiani is a 12th-century collection of canon law compiled by Gratian, a jurist and teacher. It is the first part of the Corpus Juris Canonici and a source of law for the Roman Catholic Church.
Gratian was a monk who compiled and taught the Decretum Gratiani, a treatise of church discipline based on diverse sources. He initiated canon law as a distinct branch of learning and influenced later papal legislation and codification.
- The Editors of Encyclopaedia Britannica
Aug 21, 2024 · Gratian was a Roman emperor from 367 to 383. During part of his reign he shared this office with his father, Valentinian I (reigned 364–375), and his uncle Valens (reigned 364–378). By proclaiming the eight-year-old Gratian as Augustus (coruler), his father sought to assure a peaceful succession to.
- The Editors of Encyclopaedia Britannica
Jan 4, 2021 · Learn about Gratian, the son of Valentinian I and co-emperor with his brother Valentinian II. Find out how he ruled in the west, campaigned against the Alemanni and Visigoths, and was assassinated by a traitor.
Learn about the life and reign of Gratian, the western emperor who ruled from 367 to 383. Find out how he faced barbarian invasions, religious controversies, and a rival usurper.
Gratian was the son of Valentinian I and ruled the western part of the Roman Empire from 367 to 383. He adopted a policy of mildness and Christianity, but was assassinated by his troops after a revolt by Magnus Maximus.
