Constantine Diogenes (Greek: Κωνσταντῖνος Διογένης; died 1032) was a Byzantine general of the early 11th century, active in the Balkans. He served with distinction in the final stages of the Byzantine conquest of Bulgaria under Emperor Basil II, and occupied high commands in the Balkans until his arrest in 1029, as the result of his participation in a conspiracy against Emperor Romanos III Argyros. Imprisoned and forced to enter a monastery, he killed himself in 1032 during an inquest on a further conspiracy. He was the father of Emperor Romanos IV Diogenes.
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👉 Constantine Diogenes in the context of Romanos IV Diogenes
Romanos IV Diogenes (Greek: Ῥωμανός Διογένης, romanized: Rōmanos Diogenēs; c. 1030 – c. 1072) was Byzantine emperor from 1068 to 1071. Determined to halt the decline of the Byzantine military and to stop Turkish incursions into the empire, he is nevertheless best known for his defeat and capture in 1071 at the Battle of Manzikert, which played a major role in undermining Byzantine authority in Anatolia and allowed for its gradual Turkification.
Son of the general Constantine Diogenes and a prominent member of the Cappadocian Greek military aristocracy, Romanos rose to fame as a successful Akritai commander, serving in Syria and on the Danubian frontier. In 1068, he was crowned Byzantine emperor following his marriage to the dowager empress Eudokia Makrembolitissa. Early in his reign, Romanos campaigned with limited success against the Seljuk Turks in Anatolia and Syria. Domestically, his rule was marked by a series of unpopular policies as well as clashes with the rival Doukas family. In 1071, Romanos undertook another major campaign against the Seljuks. His Byzantine army, beset by years of neglect and poor tactics, was decisively defeated by the forces of Alp Arslan at Manzikert. Romanos himself was taken prisoner.