Constantine Angelos

Constantine Angelos (c. 1093–after 1166) was a Byzantine noble from Philadelphia who in c. 1122 married Theodora Komnene, daughter of Emperor Alexios I, over the apparent disapproval of Empress Irene; the marriage raised him to the rank of sebastohypertatos.

A trusted commander of Manuel I Komnenos, he led the fleet against the Sicilians in 1154, but disobeyed orders, lost the battle and was held captive in Palermo until 1158. In 1166 he refortified Zemun, Belgrade and Niš against Hungary. Through his sons he founded the Angelos line, which produced the emperors Isaac II and Alexios III.