Dynamics of Architecture in Late Baroque Rome : De Gruyter Open Access : 9783110452457 : 3110452456 : 31 Aug 2015 : This is the first study to characterize the architectural patronage of Cardinal Pietro Ottoboni (1667-1740), and to identify twelve architects during his half century of patronage in his Ecclesiastical court of the Cancelleria. Most eminent among them were Filippo Juvarra and Domenico Gregorini. Commercial and private theaters in the palace are located from archival data, room measurements, drawings, diary accounts, Correspondence of the French Academy, and palimpsests of architectural details. The size, shape, appearance, capacity, and location of Filippo Juvarra's theater are discussed. Archival documents are cited to reveal why, how, and when it vanished. Detailed analysis is devoted to Juvarra's stage construction with its elaborate sets and moving apparatus. In his official function as Vice-Chancellor of the Church, it is well known that Ottoboni was positioned as a