A woman is falling from the gondola of a hot-hair balloon flying over the roofs.
Sophie Blanchard was the widow of aeronaut Pierre Blanchard, and an aeronaut herself. On July 6, 1819, as she was taking part in an exhibition, the fireworks she was supposed to launch set fire to her balloon, causing it to crash on the roofs.
The caption reads in the original French:
Mort de madame Blanchard.