Isaac II Angelos or Angelus was Byzantine Emperor from 1185 to 1195, and co-Emperor with his son Alexios IV Angelos from 1203 to 1204. In a 1185 revolt against the Emperor Andronikos Komnenos, Isaac seized power and rose to the Byzantine throne, establishing the Angelos family as the new imperial dynasty.

Andronikos I Komnenos, Latinized as Andronicus I Comnenus, was Byzantine emperor from 1183 to 1185. He was the son of Isaac Komnenos and the grandson of the emperor Alexios I. In later Byzantine historiography, Andronikos I became known under the epithet "Misophaes" in reference to the great number of enemies he had blinded.