Magister equitum

The magister equitum, in English Master of the Horse or Master of the Cavalry, was a Roman magistrate appointed as lieutenant to a dictator. His nominal function was to serve as commander of the Roman cavalry in time of war, but just as a dictator could be nominated to respond to other crises, so the magister equitum could operate independently of the cavalry; like the dictator, the appointment of a magister equitum served both military and political purposes.[1]

  1. ^ Dictionary of Greek and Roman Antiquities, pp. 404–408 ("Dictator").