Theodosius I came to power after the death at this battle of the Eastern Emperor, who was abandoned by his guard and anonymously killed.
This battle it is described by Ammianus Marcellinus, whose surviving works don't go past the year of this battle. The losing forces included such commanders as Richomeres and Bacurius the Iberian, and roces which engaged the Thervings and Greutungs without orders. It resulted after the losing leader rejected an armistice proposed by Fritigern and tried to conquer before Gratian's reinforcements arrived. Theodosius I came to power after the death at this battle of the Eastern Emperor, who was abandoned by his guard and anonymously killed. For 10 points, name this disastrous battle for Valens that occurred in August 378 in present-day European Turkey.
This battle it is described by Ammianus Marcellinus, whose surviving works don't go past the year of this battle.
Battle of Adrianople [or Hadrianopolis]