Belatucadrus

Belatucadros or Belatucadrus, was a deity worshipped in Celtic northern Britain, particularly in Cumberland and Westmorland. In the Roman period he was identified with the god Mars and appears to have been worshipped by lower-ranked Roman soldiers as well as by Britons. In five inscriptions he is called Mars Belatucadrus. The name is frequently translated as "fair shining one" or "fair slayer".

Belatucadrus is known from approximately 28 inscriptions in the vicinity of Hadrian's Wall.

Belatucadrus in "Merchants of Discord"
While looking for a reliable god to curse Secundinius while in Broccolitia, Tertullus learned of the god Belatucadros from a prostitute named Pluma. Believing that praying to a more obscure god would increase the potency of the curse, Tertullus purchased enough lead to create a curse tablet, and then went to Belactucadrus' shrine. However, Secundinius caught him there, and tried to get rid of the curse tablet. Angry, Tertullus stabbed Secundinius in the belly, killing him.