Antiochus I Soter
Not much is known about him until 249 BC. Greek Cyrenaean king Magas of Cyrene died in 249 BC or 250 BC. His widow was the powerful Greek monarch Apama II. She was Demetrius' niece through his paternal half sister Stratonice of Syria and her husband Antiochus I Soter of the Seleucid Empire.