Pompey

On September 28, 48 BC, Pompey the Great was assassinated on the orders of King Ptolemy of Egypt after landing in Egypt. An excerpt from the article:

"On the 9th August (the reason why he was persuaded to do so is unclear) Pompey met Caesar in pitched battle at Pharsalus in Thessaly and suffered terrible losses and a cruel defeat. Caesar had become a formidable general, having gained much valuable experience from his campaigns in Gaul. Pompey then fled to Egypt, but was stabbed to death as he disembarked at Alexandria on the 28th September 48 BCE. With the defeat of Pompey and the victory of Julius Caesar, the foundations of Imperial Rome were dug and any sentiment of a 'democratic' Rome was buried with it.

Sincere belief in Rome's freedom died long ago, when Marius and Sulla were admitted within the walls; but now, when Pompey has been removed from the world, even the sham belief is dead.
(M. Annaeus Lucanus, On the Civil War, 9.204-6)

Pompey's career was to some extent typical of a new type of Roman statesman that came to the fore in the late Republic, that of the 'military dynast', which could be seen to have had its origins in the careers of Marius and Sulla. However, in the end, Pompey tends to be seen by history as one of the great losers, which tends not to give true credit to his earlier career and what he achieved during it."