Giuseppe Valadier

Giuseppe Valadier (April 14, 1762 – February 1, 1839) was an Italian architect and designer, urban planner and archaeologist and a chief exponent of Neoclassicism in Italy.

Pietro Labruzzi: Portrait of the Architect Giuseppe Valadier - Art Institute of Chicago
Clock adorning the right side of the front of the St. Peter's Basilica in the Vatican.