Marichen Cornelia Martine Altenburg (24 April 1799 – 3 June 1869) was the mother of the Norwegian playwright Henrik Ibsen and is known as the model for several characters in some of Ibsen's most famous plays, including Åse in Peer Gynt.[1] Through the Paus family—the family of Marichen's mother Hedevig and Knud's stepfather Ole Paus—Marichen was raised as a close relative of her would-be husband Knud Ibsen, although they were not closely related biologically.[2][3]