"Antigonus I Monophthalmus (Ancient Greek: Ἀντίγονος ὁ Μονόφθαλμος, romanized: Antigonos ho Monophthalmos, 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 his 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." - (en.wikipedia.org 30.01.2020)
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