Sir Alexander Ramsay, 3rd Baronet
Sir Alexander Ramsay, 3rd Baronet( 26 May 1813- 3 March 1875) was a Conservative Party politician.
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.
Sir Alexander Matheson, 3rd Baronet
Sir Alexander Perceval Matheson, 3rd Baronet( 6 February 1861 – 7 August 1929) was a Senator for Western Australia( 1901 – 1906) and member of the Western Australian Legislative Council( 1897 – 1901).
He was the son of Sir Alexander Matheson, 1st Baronet, a Scottish MP.
Lucy, Lady Duff-Gordon
Lucy Christiana, Lady Duff- Gordon( née Sutherland; 13 June 1863 – 20 April 1935) was a leading British fashion designer in the late 19th and early 20th centuries who worked under the professional name Lucile.
The first British- based designer to achieve international acclaim, Lucy Duff- Gordon was a widely acknowledged innovator in couture styles as well as in fashion industry public relations.
In addition to originating the" mannequin parade", a precursor to the modern fashion show, and training the first professional models, she launched liberating slit skirts and low necklines, popularized less restrictive corsets, and promoted alluring and pared- down lingerie.
Opening branches of her London house, Lucile Ltd, in Chicago, New York City, and Paris, her business became the first global couture brand, dressing a trend- setting clientele of royalty, nobility, and stage and film personalities.
Duff- Gordon is also remembered as a survivor of the sinking of the RMS" Titanic" in 1912, and as the losing party in the precedent- setting 1917 contract law case of" Wood v. Lucy, Lady Duff- Gordon", in which Judge Benjamin N. Cardozo wrote the opinion for New York's highest court, the New York Court of Appeals, upholding a contract between Duff- Gordon and her advertising agent that assigned the agent the sole right to market her name.
It was the first case of its kind, clothes labeled and sold at a lowered cost in a cheaper market under an expensive" brand name".
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.
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.
Sir Alexander Cornewall Duff-Gordon, 3rd Baronet
Sir Alexander Cornewall Duff-Gordon, 3rd Baronet (3 February 1811 – 27 October 1872) was a British civil servant and Baronet of Halkin.
He was the husband of Lucie, Lady Duff-Gordon, the English writer on Egypt.
Sir Robert Gordon, 3rd Baronet
Sir Robert Gordon, 3rd Baronet( 1647–1704) was a Scottish courtier and politician.
Lucie, Lady Duff-Gordon
Lucie, Lady Duff-Gordon (24 June 1821 – 14 July 1869) was an English author and translator who wrote as Lucie Gordon.
She is best known for her "Letters from Egypt, 1863–1865" (1865) and "Last Letters from Egypt" (1875), most of which are addressed to her husband, Alexander Duff-Gordon, and her mother, Sarah Austin.
Having moved in prominent literary circles in London, she contracted tuberculosis and migrated in 1861 to South Africa for health reasons.
She travelled on to Egypt in 1862 where she settled in Luxor, learnt Arabic, and wrote many letters about Egyptian culture, religion, and customs.
Her letters are notable for humour, outrage at the ruling Ottomans, and many personal stories from the people around her.
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.

Question: Who is Sir Alexander Cornewall Duff-Gordon, 3Rd Baronet's mother-in-law?
Answer: Sarah Austin