Fountain in Piazza Santa Maria in Trastevere by a Roman aqueduct, the Aqua Traiana. When the aqueduct was ruined during the invasions of Rome, water came from underground sources below the Janiculum hill. The old fountain illustrated in the drawing of del Massaio had two vasques, one above the other, pouring water into the basin below. The fountain was reconstructed between 1499 and 1500 on the command of Giovanni Lopez, the bishop of Perouse and Bishop of the parish of Santa Maria in Trastevere, who gave the commission to Donato Bramante, the architect of St. Peter's Basilica. Bramante removed the upper vasque and added four carved stone
Gian Lorenzo Bernini (to this day) the marble originals of two of Bernini's own angels executed by the master for the Ponte Sant'Angelo. True to the decorative dynamism of Baroque, among Bernini's most gifted creations were his Roman fountains, which were both public works and papal monuments. His fountains include the "Fountain of the Triton", or "Fontana del Tritone", and the Barberini Fountain of the Bees, the "Fontana delle Api". The Fountain of the Four Rivers, or "Fontana dei Quattro Fiumi", in the Piazza Navona is a masterpiece of spectacle and political allegory. An oft-repeated, but false, anecdote tells that one of the