Jupiter and Astrea
Giovanni Battista Carlone
The allegorical figure of Justice is represented in the center of the vault with a sword, emblem of his power, and scales, a symbol of his impartiality. In the center is Jupiter sitting on a throne of clouds with the scepter and the eagle, which holds a lightning bolt with its beak. The latter is caught in the act of directing Justice to the other divinities, including Juno, with the peacock in the foreground. It is therefore Jupiter who moves justice, a warning of the control exercised by the divinity over human facts.