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.
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.
Märta Blomstedt
Märta Blomstedt (1899–1982) was an architect and one of the driving forces of the Finnish functionalism movement.
Partnering with her husband, Pauli E. Blomstedt, her first works were noted for their functional, rather than decorative appearance and settings in park-like environments.
After her husband's death, initially she formed a firm with Matti Lampén to complete projects her husband and she had begun.
Later, she and Lampén formed a firm designing their own creations.
She designed all aspects of her buildings including the furnishings, demonstrated in one of Blomstedt & Lampén's most noted designs of the Hotel Aulanko.
During the war, Blomstedt & Lampén mostly worked on renovation and restoration projects of existing buildings, but at the war's end, they returned to their own designs.
In addition to buildings, they were responsible for the city plans for Kuusjärvi and the Oravikoski Mining Community and created both public and private buildings in each city as well.
When Lampén died, Blomstedt formed a partnership with Olli Penttilä and continued to work into the 1970s.
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.
Pauli E. Blomstedt
Pauli Ernesti Blomstedt, more commonly known as P. E. Blomstedt (1 August 1900 Jyväskylä – 3 November 1935, Helsinki), was a Finnish architect and designer, who worked first in the Nordic Classicism style and then turned to Functionalism.
Both his father, Yrjö Blomstedt, and younger brother, Aulis Blomstedt, were also well-known architects.
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).
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.
Ogawa Mataji
Viscount was a general in the early Imperial Japanese Army.
He was also the father- in- law of Field Marshal Gen Sugiyama.
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.
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.

Question: Who is Märta Blomstedt's father-in-law?
Answer: Yrjö Blomstedt