Later in ancient times, Mount Sipylus () rose above the site of Magnesia ad Sipylum (the southern portion of modern Manisa), whose existence is traced back as far as the 5th century BCE. Magnesia was located along the Hermus River (Gediz River) on the plain below and was the scene of the defeat of Antiochus III "the Great" by the Romans at the Battle of Magnesia in 190 BCE. The city of Smyrna lay nearby.