Titi was born in town of
Città di Castello in Umbria. He studied arts with
Virgilio Ducci, a pupil of
Francesco Albano. Titi's Studio was republished by Giuseppe Vannacci in 1686. It was then dedicated to Cardinal Gaspero di Carpegna, the papal Vicar. Titi's index lists about 275 churches. The sections include some of the background of the founding of the church, and the descriptions of the interior are curt; however, there is room for tart commentary such as when he states that to obtain the travertine used to build the
Palazzo della Cancelleria nearly half of the
Colosseum as well as the entire Arch of Emperor
Gordian was undone. His introduction highlights that this book was meant in part to serve as a guidebook to the increasing crowd of visitors that came to Rome as pilgrims or tourists on the
Grand Tour. The book was republished over the years A similar guide for Florence had been published nearly a century earlier by
Francesco Bocchi. ==Notes==