Italian architect ( Rome 1697 or 1699 – same city 1751). He worked mostly in Rome where his best works remain, in which, in full eighteenth century, he referred ever since the beginning to the spirit and the forms of Bernini. He built the Ruffo Chapel (1735) in S. Damaso, reconstructed (1738) the church of S. Maria in Gradi in Viterbo and, in collaboration with Vanvitelli, enlarged (1745) Palazzo Odescalchi in Rome. His fame however is entrusted to the show of the Fontana di Trevi in Rome (iter 7), a work for which he won a competition and built a model in 1733 and in which he worked until his death, leaving to others the task of completing it according to his project. The fusion between architecture and sculpture and the water's play in the grandiose and firm structural setting recall to our minds the scenery concessions of Bernini, while still allowing the foreboding of the accession of neoclassicism on grounds of the solemn and ordered rhythm of the monumental prospect.