Aerial view of Carcassonne under siege. The drawing is in landscape format. It is organized within a frame drawn in ink. Traces of watercolor and inscriptions are visible in the margins.
The walls try to resist the onslaught of the enemy. Some walls have already collapsed. The warriors are using a variety of warfare and siege equipment. A catapult can be seen in the foreground. At the lices, men are breaking down the enclosure with a battering ram. On the left, some of them have made their way through. They climb a ladder to reach the hoardings.