He studied history of ideas and has written many biographies of Norwegian people, amongst them Ola Thommessen, Elling M. Solheim and Øvre Richter Frich.
Christopher Columbus | Christopher Walken | Christopher Lee | Christopher Wren | Christopher Plummer | Christopher Reeve | Christopher Lloyd | Frans Hals | Christopher Lambert | Christopher Kasparek | Christopher Hogwood | Christopher Marlowe | Christopher Hitchens | Christopher Guest | Christopher | Christopher Tolkien | Christopher Isherwood | John Christopher | Christopher Fry | Christopher Alexander | Christopher Kane | Christopher Hatton | Christopher Banks | Dennis Christopher | Christopher Wordsworth | Christopher Larkin | Christopher Cockerell | Christopher C. Kraft Jr. Mission Control Center | George Christopher | Christopher Wheeldon |