Otho, Otis. Otto is a masculine German given name. It originates as an Old High German short form (variants Audo, Odo, Udo) of Germanic names beginning in aud-, an element meaning wealth, prosperity. The name is recorded from the 7th century (Odo, son of Uro, courtier of Sigebert III).
Construction of the Fountain. Already in the fifteenth century a small Trevi Fountain was built here during the papacy of Nicholas V. In 1732, pope Clement XII commissioned Nicola Salvi to create a large fountain at the Trevi Square to replace the existing fountain.
Located at the center of the beautiful Piazza Navona, the Fountain of the Four Rivers was commissioned in 1651 by Pope Innocent X, whose family palace, the Palazzo Pamphilj, faced onto the piazza. An unusual view of the Fountain of the Four Rivers.