On the right side of the proscenium arch we can see the statue of Gabriele Bertazzolo (Mantova 1570, Mantova 1626). He was an engineer and cartographer, famous for the large map of the city of Mantua completed in 1596, a map that is still today a precious reference point for the understanding of the town planning carried out in the Gonzaga period. In particular, Bertazzolo was a hydraulic and military engineer. This statue completes the group of the four figures. He is smiling, in one hand he holds compass, in the other a sheet of paper, probably one of his projects.