网页Antioch, ancient city in Phrygia, near the Pisidian border, close to modern Yalvaç, in west-central Turkey. Founded by Seleucus I Nicator (c. 358–281 bce), it was made a free city in 189 bce by the Romans, who took direct control about 25 bce; soon thereafter the emperor Augustus made it a colony with the name Caesarea Antiochia.