Magas married the noblewoman Antigone, the child of Cassander and the niece of the powerful Regent Antipater. His marriage to Antigone reveals that Magas was a nobleman of some social status and influence as he married a close relation to the powerful Regent and his wife was a distant collateral relative to the Argead dynasty. After Magas married Antigone, they settled in Eordaea. Antigone born Magas a daughter; his only known child Berenice I of Egypt. Magas had two namesakes: his grandson Magas of Cyrene and his great, great grandson Magas of Egypt.