Great Britain George III of the United Kingdom George IV of the United Kingdom George V George VI Prince George of Denmark Gustaf VI Adolf of Sweden Prince Henry, Duke of Cumberland and Strathearn Prince Henry, Duke of Gloucester Archduke John of Austria Leopold I of Belgium Archduke Louis of Austria Maximilian I Joseph of Bavaria Archduke Maximilian of Austria–Este Oscar I of Sweden Pedro II of Brazil Michał Jerzy Poniatowski Stanisław August Poniatowski Prince Rupert of the Rhine Queen Victoria William IV of the United Kingdom William IV, Prince of Orange Prince William Frederick, Duke of Gloucester and Edinburgh Prince William Henry, Duke of Gloucester and Edinburgh Prince William, Duke of Cumberland Prince William, Duke of Cambridge References Royal Society Fellows of the Royal Society