Marcellus in Harpers Dictionary of Classical Antiquities

M. Claudius Marcellus, consul B.C. 51 and a bitter enemy of Caesar. In B.C. 46 he was pardoned by Caesar on the intercession of the Senate; whereupon Cicero returned thanks to Caesar in the oration Pro Marcello, which has come down to us. Marcellus, who was then living at Mitylené, set out on his return; but he was murdered at the Piraeus by one of his own attendants, P. Magius Chilo.