Periphetes

Periphetes was the son of Hephaestus (or Poseidon) and Anticlea. He had the habit of belabouring any travellers he met with an iron club, which distinctive feature earned him the nickname Corynetes ('club-wielder').

Eventually Theseus slew him and appropriated his club for his own use. Periphetes was also the name of other, fairly minor, characters, and it means 'notorious', from peri, 'around' and phatis, 'fame', 'report'.