Boris Nikolayevich Delaunay or Delone was a Soviet and Russian mathematician, mountain climber, and the father of physicist, Nikolai Borisovich Delone.
Boris Delaunay
Bernard-René Jourdan de Launay
Bernard René Jourdan, marquis de Launay was the French governor of the Bastille. He was the son of a previous governor, and commander of the Bastille's garrison when the prison-fortress in Paris was stormed on 14 July 1789.
Bernard-René Jourdan de Launay
Oil painting by Jean-Baptiste Lallemand depicting the arrest of de Launay during the storming of the Bastille, (Musée de la Révolution française).
1789 engraving of the beheaded Mayor of Paris Flesselles and de Launay. The caption reads "This is how we get revenge on traitors".