Drungarios

A Military rank of the Byzantine Army. Military rank, or simply rank, is a system of grading seniority and command within military organizations. ... The primary military body of the Byzantine armed forces, serving alongside the Byzantine Navy. ...

The word is related to the Latin word Drugus translated as a horde of soldiers; a large number of soldiers. Latin is the language originally spoken in the region around Rome called Latium. ...

Drungarios (Greek: Δρουγγάριος) meaning the Commander of the Drugus, thus of a large number of soldiers (later also ships).

According to the Βyzantine administrative division of the Empire (7th century) every major division called Thema (mainly a military division of the imperial army according to its geographical deployment within the Empire) was further divided into Turmae/s while each Turmae was divided into three Moirae or Drugus/es. Themes (singular thema) were administrative units of land in the Byzantine Empire. ... In Greek mythology, the white-robed Moirae or Moerae (Greek Μοίραι — the Apportioners, often called the Fates) were the personifications of destiny (Roman equivalent: Parcae, sparing ones, or Fatae; also equivalent to the Germanic Norns). ...

Each Moirae or Drugus was divided into ten Battalion/s. In military terminology, a battalion consists of two to six companies typically commanded by a lieutenant colonel. ...

Thus the Drungarios must be the today equivalent of a Commander of ten Battalions, thus the Commander of a Division. A division is a large military unit or formation usually consisting of around ten to fifteen thousand soldiers. ...

Later the rank of Drungarios started to be used as a navy rank as well, with Megas Drougarios being the Admiral of the imperial fleet.