Background
He was born in Trondhjem as the son of Ludvig Wiese Knagenhjelm (1824–1907) and Selma Angelique Lousie Roll.
He was born in Trondhjem as the son of Ludvig Wiese Knagenhjelm (1824–1907) and Selma Angelique Lousie Roll.
He finished his secondary education, graduated with the candidate.jur. degree and worked abroad for many years. Returning to Norway he was hired in the Ministry of the Interior. He moved to the Ministry of Agriculture in 1900, and also became a chamberlain in the royal court of Oscar World War II He was promoted to secretary for the Lord Chamberlain in 1903 and court marshal in 1923, and from 1925 to 1931 he was the Lord Chamberlain for the new King Haakon VII. He died in 1932.