In the rooms of the basement you can still see traces of the past, maintained until 1965: the low and massive studded doors with a small window and double bolts, writings, numbered cells and graffiti on the walls. The path of the prisons, illuminated at night in the rooms consisting of underground corridors and narrow cells occupied by ancient manuscript registers or set up in order to recall the original function, is enriched by projections with themed animations. In the past it seems that the building assigned as the residence of the Venetian rectors coincided with the ancient palacium communis.
After the destruction of 3 July 1510 by the troops of Maximilian of Habsburg, the government moved to rebuild the structure in 1515. In 1517, however, the palace was still in ruins if the rector Agostino Moro made available the surface of the site for the construction of the new cathedral in corpore civitatis, never built.
The rebuilding work undertaken during the mandate of Michele Cappello in 1524 was completed in that of Girolamo da Lezze and the first rector who returned to live there, in 1533 from the provisional seat in the castle was Marco Loredan, as we learn from his report.
