Andronikos Doukas

Timeline

1. c. 1057–1067Constantinople · ConstantinopleAndronikos was the third son of Constantine X and Eudokia, born about 1057. He studied under Michael Psellos, who composed a treatise on geometry for him, and John Italos also wrote a short philosophical work for him. His brothers Michael and Konstantios were made co-emperors by their father, but he himself was not granted the title, and so did not take part in Eudokia's brief regency after their father's death in 1067.
2. 1068–1071Constantinople and Anatolia · Byzantine EmpireAfter Romanos IV married Eudokia, he raised Andronikos to co-emperor around 1068 (perhaps to honor his new wife, and also to weaken the sons of Constantine X through numerous co-emperors). Romanos took him along on his eastern campaigns, effectively as a hostage. He was not a son of Romanos IV; after the defeat at Manzikert in 1071, another Doukas general of the same name (son of Caesar John Doukas) took part in political struggles—do not confuse him with this entry.
3. 1071–1077Constantinople · ConstantinopleDuring his brother Michael VII's reign Andronikos remained co-emperor, at times ranked above Konstantios, but his role was largely ceremonial and he held no state power. Psellos wrote an encomium after his death, stating that he had married, that his widow soon died, and that he left no children. The Norman mercenary Roussel de Bailleul raised Caesar John Doukas in 1073–1074, not this Andronikos.