Question: Who is Fu Song'E's father-in-law?

Knowledge 1: Fu Song'e
Fu Song'e (苻娀娥, died September 404) was a consort of Murong Xi (Emperor Zhaowen), emperor of the Chinese/Xianbei state Later Yan.She was posthumously honored as Empress Min (愍皇后).She was the older sister of Murong Xi's empress Fu Xunying. [SEP] Knowledge 2: Murong Xi
Murong Xi (385–407), courtesy name Daowen (道文),formally Emperor Zhaowen of (Later) Yan ((後)燕昭文帝), was an emperor of the Xianbei state Later Yan.He was one of the youngest sons of Murong Chui (Emperor Wucheng), and after the death of his nephew Murong Sheng(Emperor Zhaowu) became emperor due to his affair with Murong Sheng's mother, Empress Dowager Ding.He was regarded as a cruel and capricious ruler, who acted at the whims of himself and his wife, Empress Fu Xunying, greatly damaging the Later Yan state.After Empress Fu died in 407, he left the capital Longcheng (龍城, in modern Jinzhou, Liaoning) to bury her, and the soldiers in Longcheng took this chance to rebel and replace him with Murong Bao's adopted son Murong Yun (Emperor Huiyi), and Murong Xi himself was captured and killed.(Because Murong Yun was an adopted son who later changed his name back to Gao Yun, some historians treat Murong Xi as the last emperor of Later Yan and Gao Yun as the first emperor of Northern Yan, while others treat Gao Yun as the last emperor of Later Yan and his successor Feng Ba as the first emperor of Northern Yan.)
Knowledge 1: Fu Song'e
Fu Song'e (苻娀娥, died September 404) was a consort of Murong Xi (Emperor Zhaowen), emperor of the Chinese/Xianbei state Later Yan.She was posthumously honored as Empress Min (愍皇后).She was the older sister of Murong Xi's empress Fu Xunying. [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: Murong Xi
Murong Xi (385–407), courtesy name Daowen (道文),formally Emperor Zhaowen of (Later) Yan ((後)燕昭文帝), was an emperor of the Xianbei state Later Yan.He was one of the youngest sons of Murong Chui (Emperor Wucheng), and after the death of his nephew Murong Sheng(Emperor Zhaowu) became emperor due to his affair with Murong Sheng's mother, Empress Dowager Ding.He was regarded as a cruel and capricious ruler, who acted at the whims of himself and his wife, Empress Fu Xunying, greatly damaging the Later Yan state.After Empress Fu died in 407, he left the capital Longcheng (龍城, in modern Jinzhou, Liaoning) to bury her, and the soldiers in Longcheng took this chance to rebel and replace him with Murong Bao's adopted son Murong Yun (Emperor Huiyi), and Murong Xi himself was captured and killed.(Because Murong Yun was an adopted son who later changed his name back to Gao Yun, some historians treat Murong Xi as the last emperor of Later Yan and Gao Yun as the first emperor of Northern Yan, while others treat Gao Yun as the last emperor of Later Yan and his successor Feng Ba as the first emperor of Northern Yan.) [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: Murong Chui