Trigarium on February 27 and March 14, also celebrated for Mars, may have been held at the Trigarium as well, and possibly events for the "ludi tarentini", which became the Saecular Games. The area may, however, have been only a practice field for these events. An underground altar to the divine couple Dis Pater and Proserpina was located in the Tarentum, near or adjacent to the Trigarium. Dis was the Roman equivalent of the Greek god Plouton (Latinized as Pluto), who abducted Proserpina (Greek Persephone or Kore "the Maiden") in his chariot to the underworld to become his bride and queen.
Charon's obol "On the Nature of the Gods", Cicero identifies the Roman god Dis Pater with the Greek Pluton, explaining that riches are hidden in and arise from the earth. Dis Pater is sometimes regarded as a chthonic Saturn, ruler of the , whose consort Ops was a goddess of abundance. The obscure goddess Angerona, whose iconography depicted silence and secrecy, and whose festival followed that of Ops, seems to have regulated communications between the realm of the living and the underworld; she may have been a guardian of both arcane knowledge and stored, secret wealth. When a Roman died, the treasury