Isaac, or Isaakios (Ἰσαάκιος), Komnenos (Κομνη­νός) was a Byzantine and Eastern Roman emperor of the 11th century and the founder of the Komnenid Dynasty. He was raised under Basil II because of the relationship he had with his father, Manouel. He was a successful military leader and headed the revolt against Michael VI Bringas and won against the loyalist Byzantines in the Battle of Hades. After he was proclaimed emperor, he made attempts to fill the treasury but these attempts were found to be unpopular. Despite his less favorable economic involvement, his military prowess was as good as it ever was as he defended against the Hungarians and Pechenegs.