writer known in Denmark mainly for his poetry (Digte 1894–98, 1898, and Udvalte Digte, 1944) but best known in other countries for his biographies of St. Francis of Assisi (1907) and St. Catherine of Siena (1915).

As a student at the University of Copenhagen, Jørgensen became a follower of the influential critic Georg Brandes but soon became an outspoken critic of Brandes' materialistic realism. He became an advocate of poetic symbolism and, soon after, developed an interest in mystical and religious literature. He converted to Roman Catholicism in 1896 and lived mostly in Italy thereafter. His later life was spent largely writing his autobiography, Mit livs legende, 7 vol. (1916–28; Jörgensen: An Autobiography).