Byzantine army (Komnenian era)
The Byzantine army of the Komnenian era or Komnenian army was a force established by Byzantine emperor Alexios I Komnenos during the late 11th/early 12th century. It was further developed during the 12th century by his successors John II Komnenos and Manuel I Komnenos.
Source: Wikipedia — Byzantine army (Komnenian era) (CC BY-SA 4.0)