Crossword clues for Roman ruler. 4 letters:OTHORoman ruler.NEROSupposedly insane Roman rulerNERORoman ruler of ill reputeNEROInfamous Roman rulerNERORoman rulerNEROAncient Roman rulerOTHOHoly Roman Empire ruler, 862–973.OTHORuler of Holy Roman Empire.CAESARRoman rulerGALBARoman ruler.NERVARoman rulerAUGUSTUSRoman rulerAURELIANRoman rulerEMPERORZEROHapless Roman ruler?SULLARoman ruler before CaesarCAESARRoman ruler who said "The die is cast"EMPERORRoman rulerEMPERORZEROInept Roman ruler?OTTOSSome Holy Roman Empire rulers