In Celtic mythology, Grannus (also Gramnos, Gramnnos) was a god of healing and mineral springs. His cult was centered in Aquae Granni (now Aachen, Germany). He was equated with Apollo in Roman times. He was married to Sirona. He is likely the same as Borvo. Celtic mythology is the mythology of Celtic polytheism, apparently the religion of the Iron Age Celts. ... Oche redirects here; in darts the oche is the line from which players must throw. ... Lycian Apollo, early Imperial Roman copy of a fourth century Greek original (Louvre Museum) In Greek and Roman mythology, Apollo (Ancient Greek , Apóllōn; or , Apellōn), the ideal of the kouros (a statue of a male youth), was the archer-god of medicine and healing, light, truth, archery... This article or section does not cite its references or sources. ... In Celtic mythology, Sirona was a goddess worshipped predominantly in East Central Gaul and along the Danubian limes. ... In Celtic mythology, Borvo (to boil), also Bormo, Bormanus, was a deity worshipped in Gaul. ...

He was no doubt a sun god: the Irish for "sun" is grian (see also Deò-ghrèine and Mac Gréine). The Sun is the star at the center of the Solar System. ... Deò-ghrèine or Deò-grèine (with accents going either way) meaning “ray of sunshine” can refer to the following: 1 - Fionn MacCumhail/Finn MacCool’s famous banner, also known as “Deò-ghrèine MhicCumhail” after him. ... In Irish mythology, Mac Gréine of the Tuatha Dé Danann was a son of Cermait, son of the Dagda. ...

The Roman Emperor Caracalla (188AD to 217AD) visited the shrine of "the Celtic healing-god" Grannus during the war with Germany in about 215.