Bill Dundee
William" Bill" Cruickshanks( born 24 October 1943) is a Scottish born- Australian professional wrestler and author better known by his stage name Bill Dundee.
Cruickshanks is the father of Jamie Dundee and the father- in- law of wrestler Bobby Eaton.
Ogawa Mataji
Viscount was a general in the early Imperial Japanese Army.
He was also the father- in- law of Field Marshal Gen Sugiyama.
Mohammad Ilyas (cricketer)
Mohammad Ilyas Mahmood( born March 19, 1946, Lahore, Punjab) is a former Pakistani cricketer who played in ten Tests from 1964 to 1969.
He is the father- in- law of Imran Farhat.
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.
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.
Gratian
Gratian (18 April/23 May 359 – 25 August 383) was Roman emperor from 367 to 383.
The eldest son of Valentinian I
, Gratian accompanied, during his youth, his father on several campaigns along the Rhine and Danube frontiers.
Upon the death of Valentinian in 375, Gratian's brother Valentinian II was declared emperor by his father's soldiers.
In 378, Gratian's generals won a decisive victory over the Lentienses, a branch of the Alamanni, at the Battle of Argentovaria.
Gratian subsequently led a campaign across the Rhine, the last emperor to do so, and attacked the Lentienses, forcing the tribe to surrender.
That same year, his uncle Valens was killed in the Battle of Adrianople against the Goths.
He favoured Christianity over traditional Roman religion, refusing the office of Pontifex maximus and removing the Altar of Victory from the Roman Senate.
Flavia Maxima Constantia
Flavia Maxima Constantia (361/362 – 383) was the first empress consort of Gratian of the Western Roman Empire.
According to Ammianus Marcellinus, Constantia was a posthumous child of Constantius II by his third wife Faustina.
Her paternal grandparents were Constantine the Great and Fausta.
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.
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).

Question: Who is the father-in-law of Flavia Maxima Constantia?
Answer: Valentinian I