In Celtic polytheism, Belisama or Bηλησαμα (Bēlēsama) was a goddess worshipped in Gaul and Britain. She was connected with lakes and rivers, fire, crafts and light. Belisama was identified with Minerva/Athena and has been compared with Brigid. She has been claimed to be the consort of Belenus,[1] with whom she shared certain attributes. Her name has been interpreted to mean "summer bright".
(From Wikipedia)