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.
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.
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.
Héctor Barrantes
Héctor Barrantes Sansoni( 1939–1990) was an Argentine polo player.
He was the stepfather of Sarah, Duchess of York.
Clarice de' Medici
Clarice de' Medici (1493–1528) was the daughter of Piero di Lorenzo de' Medici and Alfonsina Orsini.
Born in Florence, she was the granddaughter of Lorenzo de' Medici, niece of Pope Leo X and sister to Lorenzo II de' Medici.
After her brother's premature death in 1519, she educated his daughter Catherine, the future Queen of France.
In 1508 she married Filippo Strozzi the Younger and moved to Rome.
Filippo and Clarice had ten children:
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.
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.
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.
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.
Lorenzo Strozzi
Lorenzo Strozzi (December 3, 1513 – December 14, 1571) was an Italian abbot and cardinal.
He was the son of Filippo Strozzi, a member of the powerful Strozzi family of Florence, and Clarice de' Medici.
Lorenzo Strozzi was born in Florence.
His ecclesiastical career developed in France, first as abbot of Saint-Victor in Marseille (which he renounced in 1561), later as abbot of Villar San Costanzo at Staffarda, and then as bishop of Béziers in 1548.
He fought firmly the spread of Calvinism in Languedoc, supported by the French queen Catherine de' Medici, who had grown up with Lorenzo after her father's death.
He was created cardinal by Pope Paul IV in the consistory of March 15, 1557, with the title of Santa Balbina.
Later he was archbishop of Albi (1561), archbishop of Aix-en-Provence (1568-1571) and archbishop of Siena from 1568.
He died at Avignon in 1571.

Question: Who is the stepfather of Lorenzo Strozzi?
Answer: Filippo Strozzi the Younger