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.
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.
Princess Jeguk
"Daejang"-Princess Jeguk (28 June 1259 – 21 May 1297, "Princess-Aunt of the State of Je") or Empress Inmyeong was queen consort to king Chungnyeol of Goryeo and the mother of king Chungseon of Goryeo.
She was the first Mongol queen of Korea, having gone to Goryeo from the Yuan dynasty.
Her father was Kublai Khan.
Princesses qualified as  were aunts of the emperor.
She was the aunt of Temür Khan, who later succeeded her father as the Yuan emperor.
Ronald Armstrong-Jones
Major Ronald Owen Lloyd Armstrong- Jones,(" né" Jones; 18 May 1899 – 27 January 1966) was a Welsh barrister and soldier.
He was the father of Antony Armstrong- Jones, 1st Earl of Snowdon, and father- in- law of Princess Margaret, younger daughter of George VI.
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).
Ogawa Mataji
Viscount was a general in the early Imperial Japanese Army.
He was also the father- in- law of Field Marshal Gen Sugiyama.
Chungnyeol of Goryeo
King Chungnyeol of Goryeo (3 April 1236 – 30 July 1308) was the 25th ruler of the medieval Korean kingdom of Goryeo from 1274 to 1308.
He was the son of Wonjong, his predecessor on the throne.
Chungnyeol was king during the Mongol Invasions of Japan, aiding in the offensives.
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.
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 Princess Jeguk's father-in-law?