Pillar of the Boatmen "(publice posierunt)" by the guild of sailors of Lutetia, from the "civitas" of the Parisii "(nautae Parisiaci)". These sailors would have been merchants who travelled along the Seine. The main dedication is to Jupiter in the form of "Iovis Optimus Maximus" ("Jove Best and Greatest"). The names of the emperor and the supreme deity appear in the dative case as the recipients of the dedication. The remaining theonyms are nominative legends that accompany individual depictions of the gods. These are (in the order they appear below) Jove, Tarvos Trigaranos (the Bull with three Cranes), Volcanus (Vulcan), Esus, Cernunnos, Castor, Smertrios,
Pluto (mythology) Enraged"), in which Father Dis, the Roman counterpart of Pluto, uses a three-pronged spear to drive off Hercules as he attempts to invade the underworld. Seneca calls Dis the "Infernal Jove" or the "dire Jove" (the Jove who gives dire or ill omens, "dirae)", just as in the Greek tradition, "Plouton" is sometimes identified as a "chthonic Zeus." That the trident and bident might be somewhat interchangeable is suggested by a Byzantine scholiast, who mentions Poseidon being armed with a bident. In the Middle Ages, classical underworld figures began to be depicted with a pitchfork. Early Christian writers had identified