The great-grandson of Cato the Elder, Cato the Younger was a strict stoic, who saw it as his goal to preserve the Republic and the mores of his Roman ancestors.
During the Catlinarian conspiracy, he supported Cicero and was instrumental in having the conspirators executed. He and Cicero were also the chief opponents of the first triumvirate. To dispose of Cato, the three men dispatched him to the island of Cyprus. When he returned, he continued to be a thorn in their side.
During he civil war, Cato held an army for the Republic in Sicily. He eventually departed to join Pompey's side, but when he learned of his death, Cato headed to Africa. Seeing that his cause was hopeless, he committed suicide in 46 BC.