Seat of the homonymous judiciary of the city, of which we have news since 1187, the palace looks to the square with an elegant façade in travertine and sandstone, alternated by a double order of Gothic mullioned windows, and with a wide loggia covered by robust cross vaults resting on travertine pillars. There is a wide access stairway to the first floor.
From 1886, the interior houses Francesco Torti Theater, expertly decorated by Domenico Bruschi and Mariano Piervittori.