Attalid dynasty
Hierapolis became a healing centre where doctors used the thermal springs as a treatment for their patients. The city began minting bronze coins in the 2nd century BC. These coins give the name Hieropolis. It remains unclear whether this name referred to the original temple (, "hieron") or honoured Hiera, the wife of Telephus, son of Heracles and the Mysian princess Auge, the supposed founder of Pergamon's Attalid dynasty. This name eventually changed into Hierapolis ("holy city"), according to the Byzantine geographer Stephanus on account of its large number of temples.