Alexander the Great By Jadorade 323 Alexander the Great died of illness 330 In 330 BC series of allegations were brought up against some of Alexander's officers concerning a plot to murder him 331 Alexander entered Egypt to conquer it 331 Two armies, Greek and Persian, met on the battlefield 334 Alexander set out for Hellespoint 336 Philip II was assassinated 345 The royal family split after Philip II left Olympias for Cleopatra 356 Alexander's Birth