Monomachos
Monomachos is a Greek byword meaning “one fighter” or “single combatant,” from mono- “one” and machē “battle.” In Byzantium, the name was used as a surname or epithet for aristocratic families and their members; in Latin and other languages it appeared as Monomachus or Monomachos. Etymologically, it reflects a martial or chivalric ideal, though the exact origin of the epithet in individual cases is not always clear.
The most prominent bearer of the name is Constantine IX Monomachos, who reigned as Byzantine emperor from
Beyond Constantine IX, the Monomachos surname appears in Byzantine and post-Byzantine genealogies as a noble family
The name is the same base as the Russian Monomakh, the form used in Kievan and later