300
The brother-in-law of Brutus and an acute judge of human nature, Cassius organizes the conspiracy against Caesar and recruits Brutus by passionate argument and by deviously placed, forged letters. He argues that Antony should be assassinated along with Caesar, that Antony should not speak at Caesar's funeral, and that he (Cassius) and Brutus should not fight at Philippi, but he eventually defers to Brutus in each instance. He is defeated by Antony at the first battle of Philippi, and he commits suicide when he mistakenly believes that Brutus has been defeated.
Cassius