text: Seleucus I Nicator won the territory of Syria , and he proceeded to found four `` sister cities '' in northwestern Syria , one of which was Antioch .
simplified: Seleucus I Nicator won the territory of Syria , and he founded four `` sister cities '' in northwestern Syria - Antioch , Seleucia Pieria , Apamea and Laodicea-on-the-Sea .