Marian Shields Robinson
Marian Lois Robinson( née Shields; born July 29, 1937) is the mother of Michelle Obama, former First Lady of the United States, and Craig Robinson, a basketball executive, and the mother- in- law of former U.S. President Barack Obama.
Philippe Junot
Philippe Junot( born 19 April 1940) is a venture capitalist and property developer with business interests in Paris, and New York City.
He is also known as the first husband of Princess Caroline of Monaco.
Maria Thins
Maria Thins( c. 1593 – 27 December 1680) was the mother- in- law of Johannes Vermeer and a member of the Gouda Thins family.
Ellen Marsvin
Ellen Marsvin (1 February 1572 – 11 November 1649) was a Danish noble, landowner and county administrator.
She was the mother-in-law of King Christian IV of Denmark, the mother of Kirsten Munk (1598–1658) and grandmother of Leonora Christina Ulfeldt (1621–1698).
Eldon Howard
Eldon Howard was a British screenwriter.
She was the mother- in- law of Edward J. Danziger and wrote a number of the screenplays for films by his company Danziger Productions.
Princess Caroline-Mathilde of Denmark
Princess Caroline-Mathilde of Denmark (27 April 1912 – 12 December 1995) was a daughter of Prince Harald of Denmark and granddaughter of King Frederick VIII of Denmark.
As the wife of Knud, Hereditary Prince of Denmark, she became Hereditary Princess of Denmark.
Princess Elisabeth of Denmark
Princess Elisabeth of Denmark,(" Elisabeth Caroline- Mathilde Alexandrine Helena Olga Thyra Feodora Estrid Margrethe Désirée"; 8 May 1935 – 19 June 2018) was the only daughter and eldest child of Hereditary Prince Knud and Hereditary Princess Caroline- Mathilde of Denmark, and a first cousin of the present Danish monarch, Queen Margrethe II.
Princess Caroline of Denmark
Princess Caroline of Denmark( 28 October 1793, Copenhagen – 31 March 1881, Copenhagen), was the eldest surviving daughter of King Frederick VI.
She was unofficially known as" Kronprinsesse Caroline"( English: Crown Princess Caroline) prior to her marriage, and later as" Arveprinsesse Caroline"( English: Hereditary Princess Caroline).
She married her father ’s first cousin, Hereditary Prince Ferdinand, who was heir presumptive to the throne from 1848 to 1863.
Knud, Hereditary Prince of Denmark
Knud, Hereditary Prince of Denmark (Knud Christian Frederik Michael; 27 July 1900 – 14 June 1976), was the younger son and child of Christian X and Alexandrine of Mecklenburg-Schwerin.
From 1947 to 1953, he was heir presumptive to his older brother, Frederick IX, and would have succeeded him as king (in 1972)
had it not been for a change in the Danish Act of Succession that replaced him with his niece, Margrethe II.
Priscilla Pointer
Priscilla Marie Pointer( born May 18, 1924) is an American stage, film and television character actress.
She began her career in the theater, including productions on Broadway.
Later, Pointer moved to Hollywood to act in films and on television.
She is the mother of Amy Irving, therefore making her the former mother- in- law of filmmakers Steven Spielberg and Bruno Barreto and the mother- in- law of documentary filmmaker Kenneth Bowser, Jr.

Question: Who is Princess Caroline-Mathilde Of Denmark's mother-in-law?
Answer: Alexandrine of Mecklenburg-Schwerin