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.
Auguste, Duke of Leuchtenberg
Auguste Charles Eugène Napoléon, Duke of Leuchtenberg (9 December 1810 – 28 March 1835) was the first prince consort of Maria II of Portugal.
Besides being the 2nd Duke of Leuchtenberg and 2nd Prince of Eichstätt, he also held the Brazilian noble title of Duke of Santa Cruz.
Claude de Beauharnais (1717–1784)
Claude de Beauharnais( 1717–1784) was a French nobleman.
He was the second son of Claude de Beauharnais( 1680 – 1738).
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 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).
Fanny de Beauharnais
Fanny de Beauharnais, née Marie- Anne -Françoise Mouchard( 4 October 1737, Paris – 2 July 1813), was a French lady of letters and salon- holder.
She was the mother of French politician Claude de Beauharnais.
She was the grandmother of Stéphanie de Beauharnais, Grand Duchess of Baden, and through her she is the ancestor of former royal families of Romania and Yugoslavia, and the present royal families of Belgium, of Luxembourg and of Monaco.
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.
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.
Maria II of Portugal
"Dona" Maria II (4 April 1819 – 15 November 1853) "the Educator"  or "the Good Mother" , reigned as Queen of Portugal from 1826 to 1828, and again from 1834 to 1853.
Born in Rio de Janeiro, she was the first child of Emperor Pedro I of Brazil and his first wife, Empress Maria Leopoldina, and thus a member of the House of Braganza.
One of the two surviving children born when Pedro was still heir apparent to Portugal, she inherited Portuguese titles and was placed in the line of succession to the former Portuguese throne, even after becoming a member of the Brazilian Imperial Family, from which she was excluded in 1835 after her definitive ascension to the Portuguese throne.
Claude de Beauharnais (1680–1738)
Claude de Beauharnais (22 September 1674 – 15 January 1738) was a French nobleman.
He was "sieur" de Beaumont et de Bellechauve, captain "des vaisseaux du roi", and a knight of the Order of Saint Louis.
He was the son of François IV de Beauharnais, seigneur de La Boische and his wife Marie Marguerite-Françoise Puyvart de Chastullé.
In 1713, Claude de Beauharnais married Renée Hardouineau (daughter of Pierre Hardouineau, seigneur de La Laudanière and his wife
Renée Le Pays de Beauville).
They had two children:
Through his son François, Claude became grandfather of Alexandre de Beauharnais, great-grandfather of Eugène de Beauharnais and Hortense de Beauharnais.

Question: Who is the father-in-law of Auguste, Duke Of Leuchtenberg?