Marichen Cornelia Martine Altenburg (24 November 1799 – 3 June 1869) was the mother of playwright Henrik Ibsen and belonged to the patriciate of Skien. She is considered the model for the character Åse in Peer Gynt and Inga of Varteig in The Pretenders, and indeed, she would "echo through her son's work in unremitting portrayals of suffering women." Henrik Ibsen himself confirmed that Åse in Peer Gynt was based on his mother.