Bjørnstjerne Bjørnson (8 September 1832 - 26 April 1910). Signert av forfatteren. In his early fifties, Bjørnson had an affair with 17-year-old Guri Andersdotter (d. 1949), which resulted in the birth of their son, Anders Underdal (1880–1973). Björnstjerne Martinius Björnson (Danca: Bjørnstjerne Martinius Bjørnson; 8 Aralık 1832, Kvikne (Tynset), Hedmark - 26 Nisan 1910, Paris), Norveçli şair ve siyasetçi. In 1881, he spoke of the farmer's clothing borne by Henrik Wergeland, and his opinion then states that this garment, worn by Wergeland, was "of the most influential things" in the initiation of the national day.