Execution of Louis XVI

The execution of Louis XVI by guillotine is an important event of the French Revolution, it took place publicly on 21 January 1793 at the "Place de la Révolution" (renamed "Place de la Concorde" in 1795) in Paris. 
Context.
At a trial on 17 January 1793, the National Convention convicted the king of high treason. No one voted "not guilty" but some deputies abstained. Louis XVI was condemned to death by a simple majority. The execution was performed four days later by Charles-Henri Sanson, who was the High Executioner of the French First Republic.