Maximilien De Robespierre

During the French Revolution, Maximilien De Robespierre was signing a lot of people to the Guillotine for execution, even his own comrades. Long story short, he wasn't telling who was on the list so in fear of the possibility of being on the list a bunch of other revolutionaries came to “arrest” him so Maximilien shot himself in the face, but only managed to shatter his lower jaw and didn't die. They left him to bleed for a while in a cell, healed up his bleeding as best as possible, then executed him the next day.