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.
Stephen V of Hungary
Stephen V (before 18 October 1239 – 6 August 1272, Csepel Island) was King of Hungary and Croatia between 1270 and 1272, and Duke of Styria from 1258 to 1260.
He was the oldest son of King Béla IV and Maria Laskarina.
King Béla had his son crowned king at the age of six and appointed him Duke of Slavonia.
Still a child, Stephen married Elizabeth, a daughter of a chieftain of the Cumans whom his father settled in the Great Hungarian Plain.
King Béla appointed Stephen Duke of Transylvania in 1257 and Duke of Styria in 1258.
The local noblemen in Styria, which had been annexed four years before, opposed his rule.
Assisted by King Ottokar II of Bohemia, they rebelled and expelled Stephen's troops from most parts of Styria.
After Ottokar II routed the united army of Stephen and his father in the Battle of Kressenbrunn on 12 July 1260, Stephen left Styria and returned to Transylvania.
Stephen forced his father to cede all the lands of the Kingdom of Hungary to the east of the Danube to him and adopted the title of junior king in 1262.
In two years, a civil war broke out between father and son, because Stephen accused Béla of planning to disinherit him.
They concluded a peace treaty in 1266, but confidence was never restored between them.
Stephen succeeded his father, who died on 3 May 1270, without difficulties, but his sister Anna and his father's closest advisors fled to the Kingdom of Bohemia.
Ottokar II invaded Hungary in the spring of 1271, but Stephen routed him.
In next summer, a rebellious lord captured and imprisoned Stephen's son, Ladislaus.
Shortly thereafter, Stephen unexpectedly fell ill and died.
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.
Donna Harun
Donna Harun( born February 21, 1968) is an Indonesian actress and model of Dutch- Indonesian descent.
She is the mother of actor Ricky Harun and mother- in- law of the actress and model Herfiza Novianti.
Elizabeth the Cuman
Elizabeth the Cuman (1244-1290) was the Queen consort of Stephen V of Hungary.
She was regent of Hungary during the minority of her son in 1272-1277.
The Cumans were the western tribes of the Cuman-Kipchak confederation.
Her people followed a shamanist religion and were considered pagans by contemporary Christians of Europe.
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.
Baroness Gösta von dem Bussche-Haddenhausen
Baroness Gösta von dem Bussche- Haddenhausen( 26 January 1902 – 13 June 1996) was the mother of Prince Claus of the Netherlands, who was the Prince Consort of Queen Beatrix of the Netherlands, thus making her the mother- in- law of the former Dutch Queen.
She is also the paternal grandmother of King Willem- Alexander of the Netherlands, who is the current Dutch King.
Doria Ragland
Doria L. Ragland( born September 2, 1956) is the mother of Meghan, Duchess of Sussex, the mother- in- law of Prince Harry, and the maternal grandmother of Archie Mountbatten- Windsor, who is seventh in line to the British throne.
She is a former makeup artist, business owner, yoga instructor, and former social worker who worked in the mental health sector from 2015 to 2018.
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.
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.

Question: Who is the mother-in-law of Elizabeth The Cuman?
Answer: Maria Laskarina