Charles Williams, Baron Williams of Elvel
Charles Cuthbert Powell Williams, Baron Williams of Elvel,( born 9 February 1933) is a retired business executive and a Labour peer.
In his 20s he played first- class cricket while at university and for several seasons afterwards.
He is the stepfather of Justin Welby, the Archbishop of Canterbury.
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.
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.
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.
Giulia Grisi
Giulia Grisi (22 May 1811 – 29 November 1869) was an Italian opera singer.
She performed widely in Europe, the United States and South America and is widely considered to be one of the leading sopranos of the 19th century.
Her second husband was Giovanni Matteo Mario de Candia (also known as "Mario the Tenor"), scion of a noble family of the Kingdom of Sardinia.
She is buried at Père Lachaise Cemetery in Paris.
Her grave is marked "Juliette de Candia", styled in her married last name.
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.
Cecilia Maria de Candia
Cecilia Maria de Candia (24 December 1853, Brighton, England – 26 May 1926, Bordighera, Italy), later Mrs Godfrey Pearse, was a British-Italian writer, amateur singer and society hostess.
She was the daughter of two famous opera singers, Giulia Grisi and the Cavaliere don Giovanni Matteo de Candia, who sang under the popular name of Mario the tenor, the youngest son of Stefano de Candia, Royal Governor General of Nice, Marquis of Candia and Aide-de-Camp to the King of Sardinia, Carlo Felice di Savoia.
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.

Question: Who is Cecilia Maria De Candia's father?
Answer: Giovanni Matteo Mario