Roman statesman were influential figures in the Roman Republic and later the Roman Empire. Marcus Porcius CATO, commonly known as CATO the Elder, was a statesman, military leader, and historian who served in the Roman Senate during the 1st century BC. Cicero was a Roman philosopher, politician, lawyer, orator, political theorist, consul, and constitutionalist who lived during the 1st century BC. Lucius Annaeus Seneca, commonly known as Seneca the Younger, was a Roman Stoic philosopher, statesman, dramatist, and—in one work—satirist of the Silver Age of Latin literature. Marcus Vipsanius Agrippa was a Roman consul, statesman, general, and architect who lived during the 1st century BC.