Constantine IX - Basileus of Basileía Rhōmaíōn from 1042 to 1055
Constantine IX reigned as Byzantine emperor from June 11, 1042 to January 11, 1055. He had been chosen by the Empress Zoe as a husband and co-emperor in 1042, although he had been exiled for conspiring against her previous husband, Emperor Michael IV the Paphlagonian. They ruled together until Zoe died in 1050.

Constantine continued the purge instituted by Zoe and Theodora, removing the relatives of Michael V from the court. The new emperor was pleasure-loving and prone to violent outbursts on suspicion of conspiracy. He was heavily influenced by his mistress, Maria Skleraina, a niece of his second wife, and Maria's relatives. In August 1042, under the influence of the Skleroi the emperor relieved General George Maniakes from his command in Italy, and Maniakes rebelled, declaring himself emperor in September. He transferred his troops into the Balkans and was about to defeat Constantine's army in battle, when he was wounded and died on the field, ending the crisis in 1043.

In 1054 the centuries-old differences between the Greek and Roman churches led to their final separation. Constantine tried to intervene, but he fell ill and died on January 11 of the following year.
Constantine IX
Emperor Constantine IX of the Byzantine Empire

Epithet: Monomachus ()