Taranis
Taranis, the powerful Celtic god of thunder, was often depicted with a wheel. Romans associated him with Jupiter, reflecting their tendency to equate deities across cultures.
Taranis’ worship spanned a vast area, primarily in Gaul, Hispania, and Britain, but also reaching the Rhineland and Danube regions.
Roman poet Lucan, in his epic poem Pharsalia, mentions Taranis, Esus, and Toutatis as a revered Celtic triad. These deities may have been associated with human sacrifice, a practice noted by some Roman writers but not universally attested for Celtic cultures.
Digital Maps of the Ancient World 