The cocktail was created in the year 1922 by Harry Craddock to mark the wedding of H.R.H. Princess Mary.
On 28 February 1922, Princess Mary married Viscount Lascelles (9 September 1882 – 24 May 1947), the elder son of the then Earl of Harewood, and Lady Florence Bridgeman, daughter of Orlando Bridgeman, 3rd Earl of Bradford of Weston Park. Their wedding at Westminster Abbey was the first royal occasion in which the future Queen Elizabeth (wife of King George VI and mother of Queen Elizabeth II), a friend of Princess Mary and one of the bridesmaids, participated. The Princess was 24, Lord Lascelles was 39.
Really tasty and elegant cocktail. Also doesn't seem to strong.....if it's not drank in large quantities.
1 1/2 ounce applejack
3/4 ounce Dubonnet
3/4 ounce dry vermouth