High Quality Content by WIKIPEDIA articles Prati is the XXII rione of Rome. Its logo is the shape of Hadrian's mausoleum, in a blue color on a silver background. Hadrian's mausoleum (the modern Castel Sant'Angelo) was not in this area, but in the rione Borgo, bordering Prati to the south. This is one of the wealthiest neighborhoods in Rome. In Piazza Della Libert , on January, 1900 was founded one of roman football team S.S. Lazio