Ogawa Mataji
Viscount was a general in the early Imperial Japanese Army.
He was also the father- in- law of Field Marshal Gen Sugiyama.
Margaret Hanmer
Margaret Hanmer (c. 1370 – c. 1420), sometimes known by her Welsh name of Marred ferch Dafydd, was the wife of Owain Glyndŵr.
Although some modern histories have accorded Margaret the title "Princess of Wales", there is no contemporary record that Hanmer used either that title or her husband's earlier title of Prince of Powys.
"
Princess of Wales", an English honorific given to the wife of the English prince of Wales, was first used by Joan of Kent.
Only one wife of a Welsh prince is known to have used the title: Eleanor de Montfort, wife of Llywelyn
ap Gruffudd, the last Prince of Wales.
Catrin ferch Owain Glyndŵr
Catrin ferch Owain Glyndŵr( died 1413) was one of the daughters( probably the eldest) of Margaret Hanmer and Owain Glyndŵr, and her marriage to a claimant on the English throne was used by her father to gain support.
Owain Glyndŵr
Owain ab Gruffydd, lord of Glyndyfrdwy (c. 1359 – c. 1415), or simply Owain Glyndŵr or Glyn Dŵr
(anglicized to Owen Glendower), was a Welsh leader who instigated a fierce and long-running yet ultimately unsuccessful war of independence with the aim of ending English rule in Wales during the Late Middle Ages.
He was the last native Welshman to hold the title Prince of Wales ("Tywysog Cymru").
Glyndŵr was a descendant of the Princes of Powys through his father Gruffudd Fychan II, hereditary "Tywysog" of Powys Fadog and Lord of Glyndyfrdwy, and of those of Deheubarth through his mother Elen
ferch
Tomas
ap Llywelyn ab Owen.
On 16 September 1400, Glyndŵr instigated the Welsh Revolt against the rule of Henry IV of England.
The uprising was initially very successful and rapidly gained control of large areas of Wales, but it suffered from key weaknesses – particularly a lack of artillery, which made capturing defended fortresses difficult, and of ships, which made rebel-controlled coastlands vulnerable.
The uprising was eventually suppressed by the superior resources of the English.
Glyndŵr was driven from his last remaining strongholds in 1409, but he avoided capture; the last documented sighting of him was in 1412.
He twice ignored offers of a pardon from his military nemesis, the new king Henry V of England, and despite the large rewards offered, Glyndŵr was never betrayed to the English.
His death was recorded by a former follower in the year 1415.
With his death
Owain acquired a mythical status along with Cadwaladr, Cynan and Arthur as a folk hero awaiting the call to return and liberate his people.
In William Shakespeare's play "Henry IV, Part 1", the character of Owen Glendower is a wild and exotic king ruled by magic and emotion.
In the late 19th century, the Cymru Fydd movement recreated him as the father of Welsh nationalism.
Maredudd ab Owain Glyndŵr
Maredudd ab Owain Glyndŵr was a son of Margaret Hanmer and Owain Glyndŵr.
He was the last significant active participant in the revolt raised by Glyndŵr in Wales between 1400 and c. 1416.
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.
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).
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.
Gruffudd ab Owain Glyndŵr
Gruffudd ap Owain Glyndŵr( c.1375 -c.1412) was the eldest son of Margaret Hanmer and Owain Glyndŵr the disinherited Prince of the old Royal house of Powys Fadog who led a major revolt in Wales between 1400 and c. 1416.

Question: Who is Margaret Hanmer's father-in-law?