 In 1587 the restoration and reinstatement of the ancient Aqua Alexandrina - from then on called "Acqua Felice" after the name of Pope Sixtus V, born Felice Peretti, the ruling pontiff - were completed.As previously done for the "Aqua Virgo", works were started to create a secondary subterranean branch of the channel, in order to assure water provision in the areas of Viminal Hill and Quirinal Hill, then scarcely served, and in the area of the Tiber Island; consequently, the building of a certain number of fountains was also planned.Pope Sixtus V commissioned the fountain to Giacomo Della Porta, who designed it in 1589, while the construction was carried out by Andrea Brasca, Pietro Gucci and Pace Naldini