Celtic Gods: Abellio

I get this info from Wikipedia, which did a good job.

Abellio (also Abelio and Abelionni) was a god worshipped in the Garonne Valley in Gallia Aquitania (now southwest France), known primarily by a number of inscriptions which were discovered in Comminges.^[1] He may have been a god of apple trees.

Some scholars have postulated that Abellio is the same name as Apollo,^[1] who in Crete and elsewhere was called Abelios (Greek Αβέλιος), and by the Italians and some Dorians Apello,^[2] and that the deity is the same as the Gallic Apollo mentioned by Caesar,^[3] and also the same as the Belis or Belenus mentioned by Tertullian^[4] and Herodian.^[5]

Other scholars have taken the reverse position that Abellio might have been a similar solar deity of Celtic origin in Crete and the Pyrenees, but the Cretan Abellio may however not be the same god as the Celtic one, but rather a different manifestation, or dialectal form, of the Greek god Apollo or his name.