or Battle of Hadrianopolis
(AD 378) Battle fought in what is now Edirne, Tur.
, that marked the beginning of serious Germanic incursions into Roman territory. It pitted the Roman army under the emperor Valens against the horsemen of the Visigoth s, Ostrogoth s, and other Germanic tribes. The Roman army was annihilated and Valens died on the battlefield. His successor, Theodosius I , and the Goth s agreed in 382 that the Goths would help with imperial defenses in exchange for food subsidies. The treaty set the pattern for later barbarian intrusions.