 In February 1715, Louis XIV held his last embassy in the Hall when he received Mehemet Reza Bey, ambassador of the Shah of Persia.On 18 January 1871 during the siege of Paris at the conclusion of the Franco-Prussian War, the Prussian king, William I, was, lead by Otto von Bismarck, declared German emperor — thus establishing the German Empire — in the Hall of Mirrors by the assembled German princes and lords.The choice fell among other things like Versailles beeing the headquarters of the united German armies, on the Hall of Mirrors because its ceiling paintings glorified the conquest of German territories by France.