Richard (III), bishop of Bayeux
Richard of Gloucester was a bishop of Bayeux in France.
Also called Richard Fitz Robert, he was the bastard son of Robert, 1st Earl of Gloucester, and Isabel of Dover, daughter of Samson of Worcester, Bishop of Worcester.
He was the nephew of Richard de Douvres, his predecessor at the bishopric of Bayeux.
William Fitz Robert, 2nd Earl of Gloucester
William Fitz Robert, 2nd Earl of Gloucester (23 November 1116 – 23 November 1183) was the son and heir of Sir Robert de Caen, 1st Earl of Gloucester, and Mabel FitzRobert of Gloucester, daughter of Robert Fitzhamon and nephew of Empress Matilda.
Maud de Lacy, Countess of Hertford and Gloucester
Maud de Lacy,( 25 January 1223 – 10 March 1289), was an English noblewoman, being the eldest child of John de Lacy, 2nd Earl of Lincoln, and the wife of Richard de Clare, 5th Earl of Hertford, 6th Earl of Gloucester.
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.
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.
Thomas Bruce, 2nd Earl of Ailesbury
Thomas Bruce, 2nd Earl of Ailesbury( later styled Aylesbury) and 3rd Earl of Elgin( 1656 – 16 December 1741) was an English politician and memoirist.
He was the son of Robert Bruce, 2nd Earl of Elgin, and Lady Diana Grey.
His maternal grandparents were Henry Grey, 1st Earl of Stamford, and Lady Anne Cecil, daughter of William Cecil, 2nd Earl of Exeter.
His" Memoirs", which were not published until long after his death, are a valuable source for English history in the last quarter of the seventeenth century.
William fitz Robert Barry
William fitz Robert Barry( fl. 1615), Irish harper.
His full name was William fitz Robert fitz Edmond Barry, that is, William son of Robert son of Edmond Barry.
He was a blind harper in the service of David de Barry, 5th Viscount Buttevant( died 1617), the same person who" had been commissioned by Queen Elizabeth to exterminate the harpers."
Mabel FitzRobert, Countess of Gloucester
Mabel FitzRobert, Countess of Gloucester (c. 1100 – 29 September 1157) was an Anglo-Norman noblewoman, and a wealthy heiress who brought the lordship of Gloucester, among other prestigious honours to her husband, Robert, 1st Earl of Gloucester upon their marriage.
He was the illegitimate son of King Henry I of England.
Her father was Robert Fitzhamon, Lord of Gloucester and Glamorgan.
As she was the eldest daughter of four, and her younger sisters had become nuns, Mabel inherited all of his honours and properties upon his death in 1107.
As Countess of Gloucester, Mabel was significant politically and she exercised an important administrative role in the lordship.
Héctor Barrantes
Héctor Barrantes Sansoni( 1939–1990) was an Argentine polo player.
He was the stepfather of Sarah, Duchess of York.
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 William Fitz Robert, 2Nd Earl Of Gloucester?
Answer: Robert, 1st Earl of Gloucester