– 1568), known by the pseudonym Nanni di Baccio Bigio, was an Italian architect who lived during the 16th century.
A versatile architect, he had originally set out to be a sculptor working under Raffaello da Montelupo.
[2] He worked primarily in Rome where he designed the Palazzo Salviati alla Lungara in the style of Giuliano da Sangallo, he directed the reconstruction of the Castel Sant'Angelo, and built the Porta del Popolo.
[3] In addition, he completed the Palazzo Sacchetti in via Giulia and contributed to the fortifications of Fano and Civitavecchia.
In Monte San Savino, he contributed to the construction of the Palazzo di Monte and the Loggie dei Mercanti following the designs of Andrea Sansovino and built the Porta Fiorentina following the designs of Giorgio Vasari, and decorated with frescos representing the so-called Madonna delle Vertighe tra Santi (Madonna of the Peaks among Saints).