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.
Princess Adelgunde of Bavaria (1870–1958)
Princess Adelgunde of Bavaria( Full German name:" Adelgunde Marie Auguste Therese Prinzessin von Bayern")( 17 October 1870, Munich, Kingdom of Bavaria – 4 January 1958, Sigmaringen, Baden- Württemberg, Germany) was a Princess of Bavaria by birth and Princess of Hohenzollern through her marriage to William, Prince of Hohenzollern.
Adelgunde was the second eldest child of Ludwig III of Bavaria and his wife Maria Theresia of Austria- Este.
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).
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.
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.
Princess Adelgunde of Bavaria
Princess Adelgunde of Bavaria (19 March 1823 – 28 October 1914) was a daughter of Ludwig I of Bavaria and Therese of Saxe-Hildburghausen.
She was Duchess consort of Modena by her marriage to Francis V, Duke of Modena.
Francis V, Duke of Modena
Francis V, Duke of Modena, Reggio and Guastalla, Archduke of Austria-Este, Royal Prince of Hungary and Bohemia, Duke of Mirandola and of Massa, Prince of Carrara (1 June 1819 – 20 November 1875) was a reigning prince.
He was Duke of Modena, Reggio, and Mirandola, Duke of Guastalla from 1847 and Duke of Massa and Prince of Carrara from 1846 to 1859.
His parents were Francis IV of Modena and Princess Maria Beatrice of Savoy.
He was the last reigning Duke of Modena before the duchy was incorporated into the Kingdom of Italy.
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.
Princess Maria Elisabeth of Bavaria
Princess Maria Elisabeth of Bavaria( 9 September 1914 – 13 May 2011) was the eldest daughter of Prince Franz of Bavaria, third son of Ludwig III of Bavaria.

Question: Who is Princess Adelgunde Of Bavaria's father-in-law?
Answer: Francis IV