Complex sentence: The city was located within the region known as the "Panion" (the region of the Greek god Pan), and is named after the deity associated with the grotto and shrines close to the spring called "Paneas".
Split into simpler sentences: The city was located within the region known as the "Panion" (the region of the Greek god Pan). Named after the deity associated with the grotto and shrines close to the spring called "Paneas".