Knut Robberstad died in 1981.
Knut Robberstad was born in 1899.
Henrik Friis Robberstad died in 1978.
Bjarne M. Robberstad died in 1977.
Henrik Friis Robberstad was born in 1901.
Bjarne M. Robberstad was born in 1912.
Knut Hedemann died in 2011.
Knut Fægri died in 2001.
Knut Torell died in 1966.
Knut Glomsaas died in 1935.
Knut Stenborg died in 1946.
Knut Frænkel died in 1897.
Knut Tangen died in 2007.