Many Celtic divinities were extremely localised, sometimes occurring in just one shrine, perhaps because the spirit concerned was a genius loci, the governing spirit of a particular place.
In Gaul, over four hundred different Celtic god-names are recorded, of which at least 300 occur just once.
Not infrequently, their names are coupled with native Celtic theonyms and epithets, such as Mercury Visucius, Lenus Mars, Jupiter Poeninus, or Sulis Minerva.
Unsyncretised theonyms are also widespread, particularly among goddesses such as Sulevia, Sirona, Rosmerta, and Epona.
Certain local or regional deities might have greater popularity within their spheres than supra-regional deities.
Another tribal god was Lenus, venerated by the Treveri.
There are many other gods whose names may betray origins as topographical spirits.