3647475 Gustavus Adolphus of Sweden lands in Germany to enter the Thirty Years War, 1630 (engraving) by Trenkwald, Josef Mathias (1824-97) (after); Private Collection; (add.info.: Gustavus Adolphus of Sweden lands in Germany to enter the Thirty Years War, 1630. Illustration for Weltgeschichte Fur Das Volk by Otto von Corvin and Wilhelm Held (Verlag und Druck von Otto Spamer, 1880). Digitally cleaned image.); by Look and Learn.