Princess Maria Clotilde of Savoy
Maria Clotilde of Savoy (Ludovica Teresa Maria Clotilde; 2 March 1843 – 25 June 1911) was born in Turin to Vittorio Emanuele II, later King of Italy and his first wife, Adelaide of Austria.
She was the wife of Napoléon Joseph Charles Paul Bonaparte.
Lolo Soetoro
Lolo Soetoro
( EYD: Lolo Sutoro;; 2 January 1935 – 2 March 1987), also known as Lolo Soetoro Mangunharjo or Mangundikardjo, of Indonesia was the stepfather of Barack Obama, the 44th President of the United States.
Alexander von Hanstein, Count of Pölzig and Beiersdorf
Maximilian Elisäus Alexander von Hanstein, Count of Pölzig and Beiersdorf( 9 June 1804, Burghaig, Kulmbach – 18 April 1884, Schmölln) was a Thuringian count.
He was the stepfather of Prince Albert and grandfather of Hans Poelzig.
Albert Visetti
Albert Anthony Visetti( 13 May 1846–10 July 1928) was a Dalmatian musician who moved to London where he was Professor of Singing at the Royal College of Music, becoming a Fellow in 1921.
He was the stepfather of the novelist Radclyffe Hall.
Gerald Rudolff Ford
Gerald Rudolff Ford( December 9, 1890 – January 26, 1962) was an American businessman, creator of Ford Industries, and Republican politician who was the stepfather of U.S. President Gerald Ford and for whom Ford legally changed his name.
Albert E. Austin
Albert Elmer Austin( November 15, 1877 – January 26, 1942) was a Republican member of the United States House of Representatives from 1939 to 1941 and member of the Connecticut House of Representatives from 1917 to 1919 and from 1921 to 1923.
He was the stepfather of Clare Boothe Luce.
Maria Letizia Bonaparte, Duchess of Aosta
Maria Letizia Bonaparte (Marie Laetitia Eugénie Catherine Adélaïde; 20 November 1866 – 25 October 1926) was one of three children born to Prince Napoléon and his wife Princess Maria Clotilde of Savoy.
In 1888 she married Prince Amadeo, Duke of Aosta, the former king of Spain and her uncle.
Maria Letizia became the Duchess of Aosta, Duke of Aosta being a title by which Amadeus was known before and after his kingship.
Their marriage was instrumental in almost reviving French hopes of reinstating the Bonaparte dynasty into a position of power, as seen in the days of Napoleon III.
Héctor Barrantes
Héctor Barrantes Sansoni( 1939–1990) was an Argentine polo player.
He was the stepfather of Sarah, Duchess of York.
Jerrold Wexler
Jerrold Wexler( June 27, 1924 – November 10, 1992) was a noted American businessman and film producer.
He was the brother of cinematographer Haskell Wexler and the stepfather of actress Daryl Hannah.
Morris Harvey
Morris Harvey( 1877– 1944) was a British actor and writer.
A renowned character actor, he also wrote for the stage, including material for Broadway revues, in which he also appeared.
He was the stepfather of film director Anthony Harvey.

Question: Who is the father of Maria Letizia Bonaparte, Duchess Of Aosta?
Answer: Napoléon Joseph Charles Paul Bonaparte