Prince Ulrik John of Denmark was the song of Frederick II of Denmark, the King of Denmark and which other country?
Frederick II of Denmark Frederick II (1 July 1534 – 4 April 1588) was King of Denmark and Norway and duke of Schleswig from 1559 until his death.
Sweyn Forkbeard Sweyn Forkbeard (Old Norse: "Sveinn Haraldsson tjúguskegg"; Danish: "Svend Tveskæg"; 960 – 3 February 1014) was king of Denmark during 986–1014.