Person

Romanos IV Diogenes

Romanos IV Diogenes was a Byzantine emperor who reigned from 1068 to 1071. He led a major campaign against the Seljuk Turks and was defeated and captured by Sultan Alp Arslan at the Battle of Manzikert in 1071. The Byzantine Empire and Seljuk Empire profiles treat the defeat as a turning point that opened Anatolia to Turkish settlement.

Romanos IV Diogenes
Image: Unknown / Photography: CNG coins · CC BY-SA 3.0 · Wikimedia Commons

Mentioned in 2 profiles

Byzantine EmpireMilitarySeljuk EmpireMilitary

See also

Cite this entry
APA
The Epoch Institute. (2026). Romanos IV Diogenes. In The Epoch Institute Encyclopedia. https://the-epoch-institute.org/encyclopedia/romanos-iv-diogenes
MLA
“Romanos IV Diogenes.” The Epoch Institute Encyclopedia, The Epoch Institute, 2026, https://the-epoch-institute.org/encyclopedia/romanos-iv-diogenes. Accessed .
Chicago
The Epoch Institute. “Romanos IV Diogenes.” The Epoch Institute Encyclopedia. 2026. https://the-epoch-institute.org/encyclopedia/romanos-iv-diogenes.
Harvard
The Epoch Institute (2026) ‘Romanos IV Diogenes’, The Epoch Institute Encyclopedia. Available at: https://the-epoch-institute.org/encyclopedia/romanos-iv-diogenes (Accessed: ).

Last reviewed October 2026Random entry ↻