Gertrude of Bavaria
Gertrude of Saxony and Bavaria( 1152/55–1197) was Duchess of Swabia as the spouse of Duke Frederick IV, and Queen of Denmark as the spouse of King Canute VI.
The Vanity Pool
The Vanity Pool is a lost 1918 American silent film drama directed by Ida May Park and starring Mary MacLaren, Anna Q. Nilsson, and Thomas Holding.
The script was based off a short story by Nalbro Bartley that was originally published in "Young's Magazine".
The film was produced and distributed by Universal Film Manufacturing Company.
The film centered around a female lobbyist who becomes involved in political intrigue when she begins lobbying for the election of her friend's husband.
Heather D. Gibson
Heather Denise Gibson is a Scottish economist currently serving as Director- Advisor to the Bank of Greece( since 2011).
She is the spouse of Euclid Tsakalotos, former Greek Minister of Finance.
Sophia Magdalena of Denmark
Sophia Magdalena of Denmark (3 July 1746 – 21 August 1813) was Queen of Sweden as the spouse of King Gustav III.
Mehdi Abrishamchi
Mehdi Abrishamchi is an Iranian People's Mujahedin of Iran( MEK) politician who has been described as" the right hand man of Massoud Rajavi".
He is the former spouse of the group's current leader, Maryam Rajavi, whom he divorced so that she could become the spouse of Massoud Rajavi.
Adib Kheir
Adib Kheir was a leading Syrian nationalist of the 1920s.
He was the owner of the Librairie Universelle in Damascus.
His granddaughter is the spouse of Manaf Tlass.
Princess Auguste of Bavaria (1875–1964)
Princess Auguste of Bavaria( 28 April 1877 – 25 June 1964) was a member of the Bavarian Royal House of Wittelsbach and the spouse of Archduke Joseph August of Austria.
Maria Teresa, Grand Duchess of Luxembourg
Maria Teresa, Grand Duchess of Luxembourg( born María Teresa Mestre y Batista; on 22 March 1956), is the spouse of Grand Duke Henri.
Ida May Park
Ida May Park (December 28, 1879 – June 13, 1954) was an American screenwriter and film director of the silent era, in the early 20th century.
She wrote for more than 50 films between 1914 and 1930, and directed 14 films between 1917 and 1920.
She was born and died in Los Angeles, California.
She was married to film director and producer Joseph De Grasse, with whom she was regularly teamed at Universal.
Marie-Louise Coidavid
Marie Louise Coidavid( 1778 – March 11, 1851), was the Queen of the Kingdom of Haiti 1811 – 20 as the spouse of Henri I of Haiti.

Question: Who is the spouse of the director of film The Vanity Pool?
Answer: Joseph De Grasse