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.
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.
Elizabeth Charlotte of the Palatinate, Electress of Brandenburg
Elisabeth Charlotte of the Palatinate (19 November 1597 – 26 April 1660) was an Electress consort of Brandenburg as the wife of George William, Elector of Brandenburg and Duke of Prussia, and the mother of Frederick William of Brandenburg, the "Great Elector".
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.
Magdalene of Brandenburg (1412–1454)
Magdalene of Brandenburg( born:; died: 27 October 1454 in Scharnebeck) was a princess of Brandenburg by birth and by marriage Duchess of Brunswick- Lüneburg.
Louis V, Landgrave of Hesse-Darmstadt
Louis V of Hesse-Darmstadt (24 September 1577 – 27 July 1626) was the Landgrave of Hesse-Darmstadt from 1596 to 1626.
He was born on 24 September 1577 as the son of George I, Landgrave of Hesse-Darmstadt and Magdalene of Lippe.
In 1604 he inherited a part of Hessen-Marburg after the death of Louis IV of Hesse-Marburg who was childless.
The other half went to Maurice of Hesse-Kassel (or Hesse-Cassel), but since Maurice was a Calvinist, Ludwig claimed a right on the whole of Hesse-Marburg.
Lutheran professors of the University of Marburg who refused to convert to Calvinism founded in 1607 the University of Gießen which was named "Ludoviciana".
This led to a conflict during the Thirty Years' War, between Louis V, who stood on the side of the Emperor, and Maurice, who was on the side of the Protestants.
Hesse-Darmstadt suffered severely from the ravages from the Swedes during the conflict.
The Landgrave died in 1626 and he was succeeded by George II, Landgrave of Hesse-Darmstadt.
In 1722, Johann Georg Liebknecht, an astronomer at the University of Gießen, named a star, which he thought was a planet, Sidus Ludoviciana after Ludwig V.
Vera Miletić
Vera Miletić (Serbian Cyrillic: Вера Милетић; 8 March 1920 – 7 September 1944) was a Serbian student and soldier.
She was notable for being the mother of Mira Marković, posthumously making her the mother-in-law of Serbian president Slobodan Milošević.
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.
Magdalene of Brandenburg
Magdalene of Brandenburg, also Magdalene and Magdalen, (7 January 1582 – 4 May 1616) was the daughter of John George, Elector of Brandenburg and his third wife Elisabeth of Anhalt-Zerbst.
She married Louis V, Landgrave of Hesse-Darmstadt.
Magdalena of Brandenburg, Countess of Hohenzollern
Magdalene of Brandenburg( 1460 in Tangermünde – 17 June 1496 at Hohenzollern Castle) was a German noblewoman.
She was a princess of Brandenburg by birth and by marriage a Duchess of Hohenzollern.

Question: Who is the mother-in-law of Magdalene Of Brandenburg?
Answer: Magdalene of Lippe