 In 1935, following the death of William Nygaard, the publishing house turned into a corporation in connection with the inheritance settlement and Williams Nygaard's son, Mads Wiel Nygaard became the Executive Officer.Aschehoug published an increasing number of important books through the years.Important Norwegian authors first published by Aschehoug have included Nobel Prize laureate, Sigrid Undset, as well as Fridtjof Nansen, Johan Falkberget, Hans E. Kinck, Aksel Sandemose, Arne Garborg - all of them writers whose works are today regarded as classics of Norwegian literature.