The image of the gothic window is mirrored on the glass of the boiserie, with notable light effects. Mario Sironi was commissioned to decorate the great hall Mario Baratto in 1936. The painting portrays a series of allegorical figures:  Mario De Luigi was a close friend of Carlo Scarpa; they both attended the Academy of Fine Arts of Venice and they worked together in the field of design and town planning; he was assistant of Arturo Martini at the Academy, then he started teaching scenography at University IUAV of Venice. Deluigi was asked to decorate a room on the first floor of Ca' Foscari palace; afterwards the painting was moved to the second floor, in the great hall Mario Baratto. The painting portrays a philosopher among his students.