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.
Héctor Barrantes
Héctor Barrantes Sansoni( 1939–1990) was an Argentine polo player.
He was the stepfather of Sarah, Duchess of York.
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.
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.
Jeanne of Saint-Pol
Jeanne of Saint-Pol (died 1407) was the only daughter of Waleran III of Luxembourg and his first wife Maud Holland, and thus a step-granddaughter to Edward, the Black Prince through her mother's side.
Her maternal grandmother was Joan of Kent.
In 1402 she married Anthony, Duke of Brabant (d. 1415) killed at Agincourt by English archers, fighting against her distant cousin Henry V of England.
She was the mother of John IV, Duke of Brabant (1403-1427) and Philip of Saint-Pol (1404-1430).
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.
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.
Philip I, Duke of Brabant
Philip I, Duke of Brabant, also known as "Philip of Saint Pol" (25 July 1404 – Leuven, 4 August 1430), was the younger son of Antoine, Duke of Brabant and Jeanne of Saint-Pol, and succeeded his brother John IV as Duke of Brabant in 1427.
He had already been given Saint-Pol and Ligny as an appanage on the death of his grandfather, Waleran III of Luxembourg, Count of Ligny, in 1415 at the Battle of Agincourt.
He commanded the Burgundian forces occupying Paris in 1419, but he returned to Brabant in 1420, where the populace complained of his brother's misadministration.
He was then declared "ruwaard" (regent) of Brabant.
In 1421, he was reconciled with his brother and resigned the regency.
The citizens were pacified by John's "Nieuw Regiment" in 1422.
During his own reign, Philip was forced to grant concessions to the nobility in 1428.
Wary of the rise of his cousin and heir Philip the Good in the Hook and
Cod wars, he sought a marital alliance with Louis II, Duke of Anjou, against Burgundy, marrying his daughter Yolande of Anjou.<br
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Because this marriage produced no children, his death in 1430 placed Brabant in the hands of his cousin Philip the Good, the next heir, whilst
Saint-Pol and Ligny went to his great-aunt, Joan of Luxembourg, by proximity of blood.
His wife Yolande was placed in the guardianship of Philip the Good, until she remarried in 1431 to Francis I, Duke of Brittany.
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.

Question: Who is the father of Philip I, Duke Of Brabant?
Answer: Anthony, Duke of Brabant