Fontus

[2] Numa Pompilius, second king of Rome, was supposed to have been buried near the altar of Fontus (ara Fontis) on the Janiculum.

[3] William Warde Fowler observed that between 259 and 241 BC, cults were founded for Juturna, Fons, and the Tempestates, all having to do with sources of water.

In the cosmological schema of Martianus Capella, Fons is located in the second of 16 celestial regions, with Jupiter, Quirinus, Mars, the Military Lar, Juno, Lympha, and the Novensiles.

[8] Water as a source of regeneration played a role in the Mithraic mysteries, and inscriptions to Fons Perennis ("Eternal Spring" or "Never-Failing Stream") have been found in mithraea.

[9] Dedications to "inanimate entities" from Mithraic narrative ritual, such as Fons Perennis and Petra Genetrix ("Generative Rock"), treat them as divine and capable of hearing, like the nymphs and healing powers to whom these are more often made.