Antonio Barberini an opera house in Rome and built in 1632. It was located in "Via delle Quattro Fontane", near the Piazza Barberini and the Quattro Fontane or "Four Fountains". Though Michelangelo Merisi da Caravaggio died when Antonio Barberini was only 3 years old, the Cardinal later became a great admirer of his work and his extensive art collection included Caravaggio's paintings such as "Still Life with Fruit", "Cardsharps" and "The Lute Player". Antonio had purchased the art collection of Francesco Maria Del Monte upon the cardinal's death which had included a large number of important works. Pope Urban VIII had purchased
Piazza della Rotonda the fountain in the Piazza della Rotonda was authorized on September 25, together with a fountain for Piazza Colonna, and two more for Piazza Navona; the fountain for the Rotonda, completed in 1575, was of a chalice-type design, around 3.5 to 4 meters in height, and fed with the Vergine water through a terracotta conduit. Della Porta designed the fountain, and Leonardo Sormani executed it. Due to the slope of the piazza, the fountain is approached by five steps on the south side, and only two on the north. Under the pontificate of Alexander VII Chigi, projects were set afoot