Gnaeus Pompeius Magnus, aka Pompey, was a great general and a wily politician who rose to become, with Caesar and Crassus, a member of the ‘First Triumvirate’ that ruled Rome in the latter days of the Republic. Being wily, he married Caesar’s daughter, but when Julia died in childbirth, and Crassus was killed some months later, Caesar ceased with any pretence of alliance and brought his army to Rome. Crassus fled to seek aid from his allies in the east, but it turned out that these were wily too, and they chose to side with Caesar.