Question: Who is Infanta Alicia, Duchess Of Calabria's father-in-law?

Knowledge 1: Infanta Alicia, Duchess of Calabria
Infanta Alicia of Spain, Duchess of Calabria (née: "Princess Alicia Maria Teresa Francesca Luisa Pia Anna Valeria of Bourbon-Parma"; 13 November 1917 – 28 March 2017) was a daughter of Elias, Duke of Parma, and Archduchess Maria Anna of Austria.Alicia was Duchess of Calabria through her marriage to Infante Alfonso, Duke of Calabria (1901–1964).She bore the title of Infanta of Spain from 1936, and took part in some of the activities that the Spanish Royal Family organises.Through marriage, she was maternal half-aunt of Juan Carlos I of Spain.She was born in Vienna, Austria-Hungary, and died in Madrid, Spain.She was paternal first cousin of Boris III of Bulgaria, and paternal half-first cousin of Jean, Grand Duke of Luxembourg, Otto, Crown Prince of Austria and Queen Anne of Romania. [SEP] Knowledge 2: Infante Alfonso, Duke of Calabria
Infante Alfonso of Spain, Prince of the Two Sicilies, Duke of Calabria (30 November 1901 – 3 February 1964) was one of two claimants to the title of the head of the House of Bourbon-Two Sicilies from 1960 until his death in 1964.Alfonso was the son of Prince Carlos of Bourbon-Two Sicilies (1870–1949) and his wife, Mercedes, Princess of Asturias (1880–1904).He was born and died in Madrid, Spain.Alfonso's mother was Mercedes, Princess of Asturias, but she died in childbirth in 1904.King Alfonso XIII of Spain was unmarried at the time so as the Princess of the Asturias' eldest son, Alfonso became heir-presumptive to the Spanish crown, though, unlike his mother, he never held the title of Prince of Asturias.He was heir-presumptive until the birth of his cousin, Alfonso in 1907, to Alfonso XIII and Queen Victoria Eugenie.
Knowledge 1: Infanta Alicia, Duchess of Calabria
Infanta Alicia of Spain, Duchess of Calabria (née: "Princess Alicia Maria Teresa Francesca Luisa Pia Anna Valeria of Bourbon-Parma"; 13 November 1917 – 28 March 2017) was a daughter of Elias, Duke of Parma, and Archduchess Maria Anna of Austria.Alicia was Duchess of Calabria through her marriage to Infante Alfonso, Duke of Calabria (1901–1964).She bore the title of Infanta of Spain from 1936, and took part in some of the activities that the Spanish Royal Family organises.Through marriage, she was maternal half-aunt of Juan Carlos I of Spain.She was born in Vienna, Austria-Hungary, and died in Madrid, Spain.She was paternal first cousin of Boris III of Bulgaria, and paternal half-first cousin of Jean, Grand Duke of Luxembourg, Otto, Crown Prince of Austria and Queen Anne of Romania. [SEP] Knowledge 2: 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.
Knowledge 1: Infante Alfonso, Duke of Calabria
Infante Alfonso of Spain, Prince of the Two Sicilies, Duke of Calabria (30 November 1901 – 3 February 1964) was one of two claimants to the title of the head of the House of Bourbon-Two Sicilies from 1960 until his death in 1964.Alfonso was the son of Prince Carlos of Bourbon-Two Sicilies (1870–1949) and his wife, Mercedes, Princess of Asturias (1880–1904).He was born and died in Madrid, Spain.Alfonso's mother was Mercedes, Princess of Asturias, but she died in childbirth in 1904.King Alfonso XIII of Spain was unmarried at the time so as the Princess of the Asturias' eldest son, Alfonso became heir-presumptive to the Spanish crown, though, unlike his mother, he never held the title of Prince of Asturias.He was heir-presumptive until the birth of his cousin, Alfonso in 1907, to Alfonso XIII and Queen Victoria Eugenie. [SEP] Knowledge 2: 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.

Answer: Prince Carlos of Bourbon-Two Sicilies