Infante Carlos of Spain (1607–1632)
The Infante Carlos of Spain, also known as The Infante Charles of Spain( 15 September 1607 – 30 July 1632), was an" infante" of Spain, the second son of King Felipe III of Spain and Margaret of Austria.
Anna of Austria, Queen of Spain
Anna of Austria (2 November 1549 – 26 October 1580) was Queen of Spain by marriage to her uncle, King Philip II of Spain.
Philip III of Spain
Philip III (14 April 1578 – 31 March 1621) was King of Spain.
He was also, as Philip II, King of Portugal, Naples, Sicily and Sardinia and Duke of Milan from 1598 until his death in 1621.
A member of the House of Habsburg, Philip III was born in Madrid to King Philip II of Spain and his fourth wife and niece Anna, the daughter of Holy Roman Emperor Maximilian II and Maria of Spain.
Philip III later married his cousin Margaret of Austria, sister of Ferdinand II, Holy Roman Emperor.
Although also known in Spain as Philip the Pious, Philip's political reputation abroad has been largely negative – an 'undistinguished and insignificant man,' a 'miserable monarch,' whose 'only virtue appeared to reside in a total absence of vice,' to quote historians C. V. Wedgwood, R. Stradling and J. H. Elliott.
In particular, Philip's reliance on his corrupt chief minister, the Duke of Lerma, drew much criticism at the time and afterwards.
For many, the decline of Spain can be dated to the economic difficulties that set in during the early years of his reign.
Nonetheless, as the ruler of the Spanish Empire at its height and as the king who achieved a temporary peace with the Dutch (1609–1621) and brought Spain into the Thirty Years' War (1618–1648) through an (initially) extremely successful campaign, Philip's reign remains a critical period in Spanish history.
Archduke Otto of Austria (1865–1906)
Archduke Otto Franz Joseph Karl Ludwig Maria of Austria (21 April 1865 – 1 November 1906) was the second son of Archduke Karl Ludwig of Austria (younger brother of Emperor Franz Joseph I of Austria) and his second wife, Princess Maria Annunciata of Bourbon-Two Sicilies.
He was the father of Charles I of Austria, the last Emperor of Austria.
Archduchess Margaret of Austria (nun)
Margaret of Austria( 1536 – 1567) was an Archduchess of Austria.
Ogawa Mataji
Viscount was a general in the early Imperial Japanese Army.
He was also the father- in- law of Field Marshal Gen Sugiyama.
Helena Antonia
Helena Antonia( 1550 – 1595) was a bearded female court dwarf of Maria of Austria, Holy Roman Empress and was a favorite of Margaret of Austria, Queen of Spain, and also a lady- in- waiting for Constance of Austria.
She was born in Liège.
Juan Everardo Nithard
Juan Everardo Nithard(" Johann Eberhard Nithard", in German)( Falkenstein( Upper Austria), 8 December 1607 – Rome, 1 February 1681) was an Austrian priest of the Society of Jesus, confessor of Mariana of Austria( Queen and Regent of Spain), cardinal, and" valido"( royal favorite) of Spain.
Margaret of Austria, Queen of Spain
Margaret of Austria (25 December 1584 – 3 October 1611) was Queen consort of Spain and Portugal by her marriage to King Philip III and II.
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 the father-in-law of Margaret Of Austria, Queen Of Spain?
Answer: Philip II of Spain