Ambisagrus

In Gallo-Roman religion, Ambisagrus was a Gaulish god worshipped at Aquileia in Cisalpine Gaul, where he was identified with Jupiter Optimus Maximus.

[1][2] The name may be composed of the Proto-Celtic prefix *ambi- ('around') and root *sagro-.

[3]

The Celtic god Cernunnos on the Gundestrup cauldron
The Celtic god Esus felling a tree on the Pillar of the Boatmen