Haagen Krog Steffens
Haagen Krog Steffens ( 30 April 1873 – 9 May 1917 ) was a Norwegian historian , archivist and genealogist . 
<triplet> Haagen Krog Steffens <subj> 30 April 1873 <obj> date of birth <subj> 9 May 1917 <obj> date of death