Romanos IV Diogenes was a Byzantine general and Akritai commander who, after his marriage to the dowager empress Eudokia Makrembolitissa, was crowned Byzantine emperor. He reigned from 1068 to 1071, during which time he was determined to halt the decline of the Byzantine military and to stop Turkish incursions into the Byzantine Empire. In 1071 he was captured and his army routed at the Battle of Manzikert by the forces of Alp Arslan.
Gold histamenon of Romanos IV: Michael VII Doukas flanked by his brothers Andronikos and Konstantios on the obverse, Romanos IV and Eudokia Makrembolitissa crowned by Christ on the reverse
Copper follis of Romanos IV. The obverse shows Christ Pantokrator, while the reverse depicts a cross quartered with the letters ϹΒΡΔ for the motto Σταυρὲ σου βοήθει Ρωμανόν δεσπότην ("Thy Cross aid the Lord Romanos").
Alp Arslan humiliating Emperor Romanos IV. From a 15th-century illustrated French translation of Boccaccio's De Casibus Virorum Illustrium.
Eudokia Makrembolitissa was a Byzantine empress by her successive marriages to Constantine X Doukas and Romanos IV Diogenes. She acted as regent of her minor son, Michael VII in 1067, and resigned her regency by marriage to Romanos IV Diogenes. When he was deposed in 1071 she resumed the regency for her sons, but was soon forced to resign again.
Contemporary miniature of empress Eudokia
Constantine X and Eudokia in a reliquary of Demetrius of Thessaloniki, by John Autoreianos.
Miniature of Constantine X and Eudokia alongside their son and co-emperor Michael VII Doukas.
