"Christian IV (Danish: Christian den Fjerde; 12 April 1577 \u2013 28 February 1648), sometimes colloquially referred to as Christian Firtal in Denmark and Christian Kvart or Quart in Norway, was a monarch of the German House of Oldenburg who ruled as king of Denmark-Norway from 1588 to 1648. His reign of 59 years is the longest of all monarchs of Denmark.Christian began his personal rule of Denmark-Norway in 1596 at the age of 19."@en . . "1588Z"^^ . . "1577-04-12Z"^^ . . "Christian IV"@en . . . . . . "1648Z"^^ . "King of Denmark and Norway" . "1648-02-28Z"^^ . . "Christian 04 Of Denmark"@en . "1588Z"^^ . . "1577Z"^^ .