The brown is the Antigonid Empire The Antigonid Empire is the unofficial name of the territory ruled by the Antigonid dynasty. It is not a true state, at least in the way Egypt and Macedonia are. A collection of former Persian holdings it was carved into an empire by Antigonus after the death of Alexander the Great, that under his son Demetrius have begun the change from territory paying tribute to a warlord into a kingdom of sorts.