When they had thus cut off Keraunus, Antigonus came from Greece, and took possession of Macedon.  He made a treaty with Antiochus, who had succeeded his father Seleucus in Syria, and thenceforth the family founded by Antigonus the One-eyed held Macedon.  This Antigonus is called Gonatas, from the name of a guard for the knee which he wore.