The megas doux was one of the highest positions in the hierarchy of the later Byzantine Empire, denoting the commander-in-chief of the Byzantine navy. It is sometimes also given in English by the half
The megas doux Alexios Apokaukos in the garb of his office
Alexios Apokaukos, also Latinized as Alexius Apocaucus, was a chief minister and head of the navy in the Byzantine Empire, during the reigns of emperors Andronikos III Palaiologos and John V Palaiolog
Megas doux
…The megas doux Alexios Apokaukos in the garb of his office The megas doux (Greek: μέγας δούξ, pronounced , "grand duke") was one of the highest positions in the hierarchy of the later…
Emperor John VI Kantakouzenos (r. 1347–1354), Apokaukos's patron and victim of his protégé's ambition