Cratippus in Harpers Dictionary of Classical Antiquities

（Κράτιππος). A Peripatetic philosopher of Mitylené, accompanied Pompey in his flight after the battle of Pharsalia, B.C. 48. He afterwards settled at Athens, where the young M. Cicero was his pupil in B.C. 44. By the elder Cicero's influence, Cratippus received the gift of Roman citizenship from Caesar.

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