Doctor of Philosophy, University Stockholm, 1972.
Teacher, University of Stockholm, Sweden, 1965-1968; military historian, Royal Armed Forces Staff College, Stockholm, 1966-1970; senior archivist, Fortifications Administration, Stockholm, 1971-1979; senior archivist, United Nations Industrial Development Organization, Vienna, 1973-1975; senior archivist, Royal Military Archives, Stockholm, 1979-1982; director, Royal Military Archives, Stockholm, 1982-1991; director general, National Archives, Stockholm, since 1991. Consultant United Nations Educational, Scientific and Cultural Organization, Libya, 1990.
Member International Council on Archives (vice president 1993), Royal Academy War Sciences (vice president 1994), Royal Academy Naval Sciences, Swedish Association Archivists (president 1991), Commision on Military History (president 1991), Rotary.
Married Birgitta Olsson, March 28, 1969. Children: Peter, Johan.