The deputy appointed by a Roman dictator, traditionally commanding the cavalry and acting under the dictator’s authority.
Overview
The magister equitum, or master of horse, was appointed by a dictator and served as his principal subordinate. The title reflected an early military function, although the office could carry broader responsibilities.
Why It Matters
The office demonstrates that even emergency command retained a formal structure. The dictator was exceptional, but he did not act entirely without recognised subordinates and constitutional forms.
In Roman Practice
The master of horse remained subordinate to the dictator and normally left office when the dictatorship ended.