These master builders were famous in antiquity from at least the fifth century BC onwards. The poet Pindar has Heracles driving the cattle of Geryon through the "Cyclopean portal" of the Tirynian king Eurystheus. The mythographer Pherecydes says that Perseus brought the Cyclopes with him from Seriphos to Argos, presumably to build the walls of Mycenae. Proetus, the mythical king of ancient Argos, was said to have brought a group of seven Cyclopes from Lycia to build the walls of Tiryns.