Frederick II was King of Denmark and Norway and duke of Schleswig from 1559 until his death.
Frederick II was the son of King Christian III of Denmark and Norway and Dorothea of Saxe-Lauenburg. He was hailed as successor to the Throne of Denmark in 1542 and of Norway in 1548. As king, he visited Norway in 1585, when he came to Båhus. Unlike his father, he was strongly affected by military ideals. Already as a young man he made friendship with German war princes. Shortly after his succession he won his first victory with the conquest of Dithmarschen in Schleswig-Holstein by Johan Rantzau during the summer of 1559.