Personal life

He was born in Trondhjem

Trondheim

Trondheim , historically, Nidaros and Trondhjem, is a city and municipality in Sør-Trøndelag county, Norway. With a population of 173,486, it is the third most populous municipality and city in the country, although the fourth largest metropolitan area. It is the administrative centre of...

 as the son of Ludvig Wiese Knagenhjelm (1824–1907) and Selma Angelique Lousie Roll. The Knagenhjelm family had resided in Sogndal

Sogndal

Sogndal is a municipality in the county of Sogn og Fjordane, Norway. It is located in the traditional district of Sogn. The village of Sogndalsfjøra is the administrative center of Sogndal municipality. Other main villages include Kaupanger, Kjørnes, and Fjærland...

 in recent times, and had been ennobled in 1721, then under the name Knagenhielm. He was a brother of Lord Chamberlain Jacob Roll Knagenhjelm

Jacob Roll Knagenhjelm

Jacob Roll Knagenhjelm was a Norwegian royal servant. He served as the Lord Chamberlain of Norway from 1925 to 1931.-Personal life:He was born in Trondhjem as the son of Ludvig Wiese Knagenhjelm and Selma Angelique Lousie Roll....

. On the maternal side he was a grandson of mayor Jacob Roll

Jacob Roll (born 1783)

Jacob Roll was a Norwegian judge and politician.He was born in Spydeberg. He was the Chief Justice of Trondhjem Diocesal Court from 1828 to 1855. He was also the first Mayor of Trondhjem. He was elected to the Parliament of Norway in 1833, 1836 and 1842, representing his city...

 and nephew of Oluf Nicolai Roll

Oluf Nicolai Roll

Oluf Nicolai Roll was a Norwegian engineer, architect and politician. He was responsible for the industrial development of the area around the river Akerselva in Christiania, and served as Director General of Statens Havnevesen from 1861 to 1896.-Personal life:Roll was born in Trondhjem, the son...

, Karl Jacob Roll and Ferdinand Nicolai Roll

Ferdinand Nicolai Roll

Ferdinand Nicolai Roll was a Norwegian jurist and politician for the Conservative Party.He was born in Trondhjem as the son of judge and politician Jacob Roll and his third wife Nicoline Selmer. He had three siblings. Like his father, he took a law education, enrolling as a student in 1847 and...

.

He was married to Barbara Ihlen, a daughter of Jacob Thurmann Ihlen

Jacob Thurmann Ihlen

Jacob Thurmann Ihlen was a Norwegian barrister and politician for the Conservative Party.-Personal life:He was born in Holmestrand as the son of ship-owner Nils Ihlen and Barbara Wincentz Thurmann...

 and Belgian citizen Ambrosine Pauline Rouquet; and also a first cousin of industrialists Nils, Joakim

Joakim Ihlen

Joakim Lund Ihlen was a Norwegian industrialist. He was born in Skedsmo, the son of engineer and politician Nils Claus Ihlen. He was co-manager of the workshop Strømmens Værksted for nearly fifty years, along with his brother Alf Ihlen....

 and Alf Ihlen

Alf Ihlen

Alf Ihlen was a Norwegian industrialist.He was born in Skedsmo, as a son of engineer and politician Nils Claus Ihlen and Henriette Marie Lund. He was co-manager of the workshop Strømmens Værksted for about fifty years, along with his brother Joakim Ihlen...

. He was a brother-in-law of Celina Ihlen, who was married to Christian Pierre Mathiesen

Christian Pierre Mathiesen

Christian Pierre Mathiesen was a Norwegian landowner and politician for the Conservative Party.He was born in Kristiania as the youngest son of landowner and industrialist Haaken C. Mathiesen. He finished his secondary education in 1888, graduated from the agricultural school at Sem in 1890 and...

.

Arthur and Barbara had the son Kai Knagenhjelm

Kai Knagenhjelm

-Personal life:He was born in Trondhjem as a son of barrister Arthur Knagenhjelm and Barbara Ihlen . On the maternal side he was a grandson of Jacob Thurmann Ihlen and Belgian citizen Ambrosine Pauline Rouquet....

, a high-ranking bureaucrat who married into the Sverdrup Fearnley family.

Career

He finished his secondary education in 1884, and graduated with the cand.jur. degree in 1889. He was a deputy judge from 1889 to 1891, then a junior solicitor from 1892 to 1895, working in the Office of the Attorney General of Norway

Office of the Attorney General of Norway

Office of the Attorney General of Norway is a body subordinate to the Norwegian Office of the Prime Minister.It was established in 1816. Its task is to assist the executive branch of government with judicial questions, and to conduct civil legal trials....

. From 1895 he was a barrister with the right to work with Supreme Court

Supreme Court of Norway

The Supreme Court of Norway was established in 1815 on the basis of the Constitution of Norway's §88, prescribing an independent judiciary. It is located in Oslo and is Norway's highest court...

 cases.

He chaired Kykkelsrudanlegget from 1899 to 1928 and Porsgrunds Elektrometallurgiske from 1918. He was a board member of Glommens Brukseierforening from 1903, Salomons Skofabrik from 1904, Labro Træsliberi from 1906 to 1918, Hafslund from 1916 to 1922, Freia Chocolade Fabrik

Freia (chocolate)

Freia is a Norwegian chocolate candy manufacturing company. The company is famous for Freia Melkesjokolade and Kvikk Lunsj, as well as for other candy and dessert products.-History:...

 from 1916, Odda Smelteverk from 1924; and a supervisory council member of Filharmonisk Selskap.

He was the president of Alliance française

Alliance française

The Alliance française , or AF, is an international organisation that aims to promote French language and culture around the world. created in Paris on 21 July 1883, its primary concern is teaching French as a second language and is headquartered in Paris -History:The Alliance was created in Paris...

 in Norway from 1904 to 1920, and later an honorary member. He was also decorated as a Commandeur of the Legion of Honour and as an Officier d'Instruction Publique. He died in 1938 and was buried in Vestre gravlund

Vestre gravlund

Vestre gravlund is a cemetery in the Frogner borough of Oslo, Norway, located next to the Borgen metro station. At , it is the largest cemetery in Norway...

.