High Quality Content by WIKIPEDIA articles! The Battle of Kalavrye (also Kalavryai or Kalavryta) was fought in 1078 between the imperial forces of Alexios Komnenos and the rebellious governor of Dyrrhachium, Nikephoros Bryennios the Elder. Bryennios had rebelled against Michael VII Doukas (r. 1071–1078) and had won over the allegiance of the Byzantine Empire`s regular regiments in the Balkans. Even after Doukas`s overthrow by Nikephoros III Botaneiates (r. 1078–1081), Bryennios continued his revolt, and threatened Constantinople. After failed negotiations, Botaneiates sent the young general Alexios Komnenos with whatever forces he could gather to confront him.