Ludwig von Westphalen
Johann Ludwig von Westphalen( 11 July 1770 – 3 March 1842) was a liberal Prussian civil servant and the father- in- law of Karl Marx.
Ogawa Mataji
Viscount was a general in the early Imperial Japanese Army.
He was also the father- in- law of Field Marshal Gen Sugiyama.
John Vernou Bouvier III
John Vernou" Black Jack" Bouvier III( May 19, 1891 – August 3, 1957) was an American Wall Street stockbroker and socialite.
He was the father of First Lady Jacqueline Kennedy Onassis and of socialite Lee Radziwill, and was the father- in- law of John F. Kennedy.
James Armour (Master mason)
James Armour (15 January 1730 – 20 September 1798) was a master mason and father of Jean Armour, and therefore the father-in-law of the poet Robert Burns.
Harry Smith (athlete)
Harry James Smith( July 30, 1888 – November 20, 1962) was an American long- distance runner.
He was most notable for competing in the 1912 Olympics in Stockholm.
He was also the father of Hart wrestling family matriarch Helen Hart and the father- in- law of Stu Hart.
Infanta Alicia, Duchess of Calabria
Infanta Alicia of Spain, Duchess of Calabria (née: "
Princess Alicia Maria Teresa Francesca Luisa Pia Anna Valeria of Bourbon-Parma"; 13 November 1917 – 28 March 2017) was a daughter of Elias, Duke of Parma, and Archduchess Maria Anna of Austria.
Alicia was Duchess of Calabria through her marriage to Infante Alfonso, Duke of Calabria (1901–1964).
She bore the title of Infanta of Spain from 1936, and took part in some of the activities that the Spanish Royal Family organises.
Through marriage, she was maternal half-aunt of Juan Carlos I of Spain.
She was born in Vienna, Austria-Hungary, and died in Madrid, Spain.
She was paternal first cousin of Boris III of Bulgaria, and paternal half-first cousin of Jean, Grand Duke of Luxembourg, Otto, Crown Prince of Austria and Queen Anne of Romania.
Barthold A. Butenschøn Sr.
Hans Barthold Andresen Butenschøn( 27 December 1877 – 28 November 1971) was a Norwegian businessperson.
He was born in Kristiania as a son of Nils August Andresen Butenschøn and Hanna Butenschøn, and grandson of Nicolay Andresen.
Together with Mabel Anette Plahte( 1877 – 1973, a daughter of Frithjof M. Plahte) he had the son Hans Barthold Andresen Butenschøn Jr. and was through him the father- in- law of Ragnhild Butenschøn and grandfather of Peter Butenschøn.
Through his daughter Marie Claudine he was the father- in- law of Joakim Lehmkuhl, through his daughter Mabel Anette he was the father- in- law of Harald Astrup( a son of Sigurd Astrup) and through his daughter Nini Augusta he was the father- in- law of Ernst Torp.
He took commerce school and agricultural school.
He was hired in the family company N. A. Andresen& Co, and became a co-owner in 1910.
He eventually became chief executive officer.
The bank changed its name to Andresens Bank in 1913 and merged with Bergens Kreditbank in 1920.
The merger was dissolved later in the 1920s.
He was also a landowner, owning Nedre Skøyen farm and a lot of land in Enebakk.
He chaired the board of Nydalens Compagnie from 1926, having not been a board member before that.
He also chaired the supervisory council of Forsikringsselskapet Viking and Nedre Glommen salgsforening, and was a supervisory council member of Filharmonisk Selskap.
He was a member of the gentlemen's club SK Fram since 1890, and was proclaimed a lifetime member in 1964.
He was buried in Enebakk.
John Adams (merchant)
John Adams( 1672 or 1673 – 1745) was an American- born Canadian merchant and member of the Nova Scotia Council.
He was the father- in- law of Henry Newton( politician).
Infante Alfonso, Duke of Calabria
Infante Alfonso of Spain, Prince of the Two Sicilies, Duke of Calabria (30 November 1901 – 3 February 1964) was one of two claimants to the title of the head of the House of Bourbon-Two Sicilies from 1960 until his death in 1964.
Alfonso was the son of Prince Carlos of Bourbon-Two Sicilies (1870–1949) and his wife, Mercedes, Princess of Asturias (1880–1904).
He was born and died in Madrid, Spain.
Alfonso's mother was Mercedes, Princess of Asturias, but she died in childbirth in 1904.
King Alfonso XIII of Spain was unmarried at the time so as the Princess of the Asturias' eldest son, Alfonso became heir-presumptive to the Spanish crown, though, unlike his mother, he never held the title of Prince of Asturias.
He was heir-presumptive until the birth of his cousin, Alfonso in 1907, to Alfonso XIII and Queen Victoria Eugenie.
Peter Burroughs
Peter Burroughs( born 27 January 1947) is a British television and film actor, the director of Willow Management.
He is the father- in- law of actor and TV presenter Warwick Davis.

Question: Who is Infanta Alicia, Duchess Of Calabria's father-in-law?
Answer: Prince Carlos of Bourbon-Two Sicilies