Lady Mary Victoria Douglas-Hamilton, also known as Mary Victoria Hamilton (11 December 1850 &nd

Lady Mary Victoria Douglas-Hamilton, also known as Mary Victoria Hamilton (11 December 1850 – 14 May 1922), was a Scottish noblewoman who was the great-grandmotherofPrince Rainier III of Monaco,Prince Karl Johannes von Schwarzenbergand Princess Ira von Fürstenberg, and the great-great grandmother of Albert II, Prince of Monaco.