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.
Cornelia (mother of the Gracchi)
Cornelia( c. 190s – c. 115 BC) was the second daughter of Publius Cornelius Scipio Africanus, the hero of the Second Punic War, and Aemilia Paulla.
She is remembered as a prototypical example of a virtuous Roman woman.
She was the mother of the Gracchi brothers, and the mother- in- law of Scipio Aemilianus.
Columba Bush
Columba Bush (née Garnica Gallo ; born August 17, 1953) is a Mexican-American philanthropist.
Bush served as First Lady of Florida from 1999 to 2007 and is the wife of former Florida Governor Jeb Bush.
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.
Ebba Eriksdotter Vasa
Ebba Eriksdotter Vasa (circa 1491 – 21 November 1549) was a Swedish noblewoman.
She was the mother of Queen Margaret Leijonhufvud and the second cousin and mother-in-law of King Gustav Vasa.
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.
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.
Jeb Bush
John Ellis "Jeb" Bush (born February 11, 1953) is an American politician who served as the 43rd Governor of Florida from 1999 to 2007.
Bush, who grew up in Houston, is the second son of former President George H. W. Bush and former First Lady Barbara Bush, and a younger brother of former President George W. Bush.
He graduated from Phillips Academy in Andover, Massachusetts, and attended the University of Texas, where he earned a degree in Latin American affairs.
In 1980, he moved to Florida and pursued a career in real estate development, and in 1986 became Florida's Secretary of Commerce until 1988.
At that time, he joined his father's successful campaign for the Presidency.
In 1994, Bush made his first run for office, losing the election for governor by less than two percentage points to the incumbent Lawton Chiles.
Bush ran again in 1998 and defeated Lieutenant Governor Buddy MacKay with 55 percent of the vote.
He ran for reelection in 2002, defeating Bill McBride and winning with 56 percent, to become Florida's first two-term Republican governor.
During his eight years as governor, Bush pushed an ambitious Everglades conservation plan, supported caps for medical malpractice litigation, launched a Medicaid privatization pilot program, and instituted reforms to the state education system, including the issuance of vouchers and promoting school choice.
Bush announced his presidential candidacy on June 15, 2015.
He suspended his campaign on February 20, 2016, shortly after the South Carolina primary and endorsed Senator Ted Cruz on March 23, 2016.

Question: Who is Columba Bush's mother-in-law?
Answer: Barbara Bush