(n.) A Roman emperor, as being the successor of Augustus Caesar. Hence, a kaiser, or emperor of Germany, or any emperor or powerful ruler. See Kesar.

Dalai Lama Holy Roman Emperor Inca Kaiser Simon Legree absolute monarch absolute ruler all-powerful ruler ardri arrogator autarch autocrat bey cacique cham commissar czar despot dictator disciplinarian driver duce hard master kaid khan martinet mikado negus oligarch oppressor padishah pendragon pharaoh rig sachem sagamore shah sheikh shogun slave driver stickler tenno tycoon tyrant usurper warlord