Whose god?

Medusa or Gorgon, 1st Century A.D., From the Temple of Sulis Minerva at the Roman Bath in Bath, England.

This representation of the Gorgon Medusa was part of the pediment decoration from the Temple of Sulis Minerva at Bath. Sulis Minerva was a goddess of healing and the sulfur infused waters found at Bath were thought to have healing powers. Usually Medusa is depicted as a woman and this representation looks more like a man which makes it seem that it may be a mis-attribution and that this representation might actually be of a river god from local folklore.