The very heart of the mansion is the central hall, a two story, wide room. The vault is decorated with a fresco representing the Abduction of Persephone. Around the fresco there are several medals and mouldings, representing naked cherubs and eagles.
At the corners of the hall we can recognize Juno, Venus, Ceres and Diana, while on the two lateral painted background we see Minerva with the shield and the head of the Gorgone and a feminine divinity riding the Hydra.
These themes glorify the talents of women, like the ability of giving the gift of life, the capacity for charming with their beauty, or the talent for true perception.
The Abduction of Persephone probably alludes to the flow of time and season, to the agricultural activity, as well as to an important Gambara family wedding.
The several feminine divinities could hint to different kinds of love: the marital one (Juno), the physical one (Venus), the platonic and chaste one (Diana).
While women rules the upper part of the ceiling, in the four inferior placards several heroes of the Greek Mythology wriggle in the sufferings inflicted on them by the gods: Prometheus torn apart by the eagle, Sysyphus crushed by the stone, The eternal torment of Tantalus, Issionus devoured by the snakes, Piritoo devoured by Cerberus Perseus and Andromeda. Formerly each representation was accompanied by some lines of Latin poetry, but unfortunately the verses dedicated to Prometheus and Sysyphus have been lost.
These frescos were realized by Pompeo Ghitti in his juvenile years (about 1675) and are pervaded by the fresh spirit of the Bolognese school of painting, which refines the harshness of the drawing, typical of Lombard art.