Roman Ruler is a term used to describe the rulers of the Roman Empire. Julius CAESAR, or CAESAR (6 letters), was a Roman general and statesman who played a critical role in the events that led to the demise of the Roman Republic and the rise of the Roman Empire. Nero (4 letters) was the fifth and last Roman Emperor of the Julio-Claudian dynasty. He is infamously known for his tyrannical rule and his persecution of Christians. Otho (4 letters) was the third Roman Emperor of the Year of the Four Emperors. He reigned for only three months before committing suicide. Nerva (5 letters) was the first Roman Emperor of the Nervan-Antonine dynasty. He is known for his successful reforms which laid the foundations of the peaceful second century of the Roman Empire.