Wars of the Diadochi
Antigonus I Monophthalmus (, Antigonus the One-eyed, 382 – 301 BC), son of Philip from Elimeia, was a Macedonian nobleman, general, satrap, and king. During the first half of his life he served under Philip II; after Philip's death in 336 BC, he served Philip's son Alexander. He was a major figure in the Wars of the Diadochi after Alexander's death, declaring himself king in 306 BC and establishing the Antigonid dynasty.