Constantine X Doukas

Constantine X Doukas
Emperor and Autocrat of the Romans
Contemporary miniature of Constantine X, previously thought to be Alexios I[1]
Byzantine emperor
Reign	23 November 1059 – 23 May 1067
Predecessor	Isaac I
Successor	Romanos IV Eudokia (regent)
Co-emperors	Konstantios Michael VII
Born	c. 1006
Died	23 May 1067(1067-05-23) (aged 60–61)
Spouse	Delassena Eudokia Makrembolitissa
Issue	by Eudocia Michael VII Doukas A son Anne Doukaina Andronikos Doukas Theodora Doukaina Konstantios Doukas Zoe Doukaina
Dynasty	Doukas
Father	Andronikos Doukas

Constantine X Doukas or Ducas (Greek: Κωνσταντῖνος Δούκας, Kōnstantinos X Doukas, c. 1006 – 23 May 1067), was Byzantine emperor from 1059 to 1067. He was the founder of the Doukid dynasty. During his reign, the Normans took over much of the remaining Byzantine territories in Italy while in the Balkans the Hungarians occupied Belgrade. He also suffered defeats by the Seljuk sultan Alp Arslan.