Fontana della Piazza dei Quiriti Fontana della Piazza dei Quiriti Piazza dei Quiriti is a plaza in Rome in the middle of the Prati rione. It is named after the inhabitants of the city of Cures, the "Curites" or later "Quirites", namely the Sabines, who became inhabitants and co-founders of Rome. Another theory derives the name from the god Quirinus, a Roman deity. Near the square stands the church of St. Joachim, completed in 1898 by architect Raffaele Ingami. Its purpose was to solemnize the priestly and episcopal jubilee of Leo XIII. A fountain called the "Fountain of the Caryatids" is placed in the center,
Fountain from the conch shell of the triton. The Piazza Navona became a grand theater of water, with three fountains, built in a line on the site of the Stadium of Domitian. The fountains at either end are by Giacomo della Porta; the Neptune fountain to the north, (1572) shows the God of the Sea spearing an octopus, surrounded by tritons, sea horses and mermaids. At the southern end is Il Moro, possibly also a figure of Neptune riding a fish in a conch shell. In the center is the Fontana dei Quattro Fiumi, (The Fountain of the Four Rivers) (1648–51),