Pergamon
Pergamon ( or ), Pergamos or Pergamum () ( or ), was a rich and powerful ancient Greek city in Aeolis. It is located from the modern coastline of the Aegean Sea on a promontory on the north side of the river Caicus (modern-day Bakırçay) and northwest of the modern city of Bergama.
Attalid dynasty
In the interior of the Pergamon Altar there is a frieze depicting the life of Telephus, son of Herakles. The ruling dynasty associated Telephus with its city and used him to claim descent from the Olympians. Pergamon, having entered the Greek world much later than its counterparts to the west, could not boast the same divine heritage as older city-states and so had to cultivate its place in Greek mythology retroactively.