Jean-François Boyvin de Bonnetot

Jean-François Boyvin de Bonnetot, or marques Bacqueville (Bacqueville-en-Caux, 1688 - Paris, October 7, 1760/1789), was a French inventor.
On March 19, 1742, he flew in a glider over the river Seine. Jean-Jacques Rousseau observed and recorded the event in his biographical book. He equipped himself with wings and attempted to fly off the roof of the hotel. He briefly hovered 300 meters above the Seine before falling into a barge and breaking his leg.