In 1569, the engineer Alessandro Resta drew this map that highlights precisely the weakness of the State of Lucca, with its reduced territorial size and by that time almost completely encircled by Florence.

The rulers of Lucca had just to look at this map to perceive the threat looming over the Republic. The territory of Lucca is represented in green, the Estense dominions in yellow, the State of Massa in white, the Florentine dominions in red, which with Barga and Pietrasanta besieged Lucca.

In the scroll, Alessandro Resta has drawn two panthers, animals of Lucca heraldry that support the shield with the inscription Libertas. The motto Libertas can be found on coins, on the doors of the Walls, on the Statutes and gave expression to a sentiment introjected into the citizens to the point that they used it to baptize their children.

The bastion that in the new Walls looks towards the border with Florence was called Libertas, the only one not to be named after a Saint.