Grand Domestikos was the highest military rank in the Empire of Videssos.The person who wielded the rank personally commanded the Emperor's forces and dealt with him on a day-to-day basis.Usually, the Grand Domestikos was someone the Emperor trusted, but there was always a chance that he would usurp the throne.

Avtokrator Stylianos was one of the Empire's greatest Grand Domestikoi. He soon assumed the throne after rebelling against Avtokrator Maleinos II and defeating the erstwhile emperor on the battlefield.