On 1 February 1622 (n. st.), at the request of proto Bartolomeo Manopola, Antonio Vassilacchi, known as Aliense, appraised the feigned architecture painted by Domenico Bruni and Giacomo Pedralli for the ceiling of the Sala dei Banchetti, the new banqueting hall in the Doge’s Palace, along with two other painters, Giacomo Rizzardini and Gerolamo Pilotti. This appraisal is a remarkable testimony to the skills and knowledge of one of the leading artists active in Venice in those years, and at the same time provides us with precise information on these now destroyed paintings, one of the most ambitious and original decorative undertakings of the period. The banqueting hall was undoubtedly the most important example of quadratura painting in Venice, and the paper tries to reconstruct its appearance, since it has been demolished in 1763. It also tries to find out where Aliense could have acquired the extensive mathematical and architectural knowledge he demonstrated in this document.