Between 1522 and 1541, François I reinforced the stronghold of Ardres with six bastions attached to the medieval wall. The work was entrusted to the Italian architect Dominique de Cortona, known as Boccador. Razed after 1849, all that remains of these fortifications is the Condette bastion, the conservation of which is due to the development of a public garden. It is a bastion whose salient forms an angle of 70 meters in length on the face and 30 meters in length on the side, comprising three high brick vaulted galleries, serving the access stairs to the lower defenses. The countermine gallery bypasses the main orillons by serving four firing positions, each pierced with three divergent firing slots for multidirectional fire for long guns. Above, a ventilation rises to the surface of the bastion to allow the smoke from the shots to escape. Presence in the sides of a casemate for heavy artillery, with two French embrasures, covered with a brick vault resting on a central pillar with three vents. This bastion is intended to be a transitional work between fortification by artillery towers and fortification by bastions.