Pompey

Pompey was a Roman in opposition to Julius Caesar.

Biography
After Julius Caesar suggested going against the Senate, Pompey threatened to have his head if he did such a thing.

Behind the scenes

 * In the real world, Gnaeus Pompeius Magnus, known in English as simply Pompey, was a military and political leader of the Roman Republic. Along with Julius Caesar and another, they formed the unofficial military-political alliance known as the First Triumvirate.