Juturna

In Roman mythology, Juturna was the goddess of fountains, wells and springs. She was a sister of Turnus and supported him against Aeneas. She was also the mother of Fontus by her husband, Janus.

Jupiter turned her into a nymph and gave her a sacred well in Lavinium[?], Latium, as well as another one near the temple to Vesta in the Forum Romanum. The second well was called Lacus Juturnae[?].

Juturna had an affair with Jupiter but the secret was betrayed by a nymph named Lara, whom Jupiter struck with muteness as punishment.