Haagen Krog Steffens (30 April 1873 - 9 May 1917) was a Norwegian historian, archivist and genealogist.[1]
Haagen Krog Steffens was born in Christiania (now Oslo), Norway. He was the son of physician Henrich Steffens (1841-1984) and Asta Falch. Steffens belonged to a family originating in Holstein. Both his father and grandfather were doctors and his family fostered a number of prominent individuals.Steffens attended Christiania Cathedral School (now Oslo Cathedral School). Steffens graduated with a Candidate of Law degree in 1897. Later he undertook a series of studies at archives in Sweden, Denmark, Germany and Belgium. He was hired was an archivist in the National Archival Services of Norway and had a decisive influence on the archive system.
His most important works were Norske slægter, released in two volumes in 1912 and 1915; Den norske Centraladministrasjons Historie 1814-1914, released in 1914; and Kragerø bys historie, released in 1916. He was a published in both Morgenbladet and Aftenposten.[2]
He is best known as a very diligent genealogist. He wrote genealogies of several families, including the Mogensen, Mathiesen, Rod and Aall families.[3]
He died in Oslo and was buried at Vår Frelsers gravlund.[4]