Christian IV of Denmark
Christian IV , 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 DenmarkNorway from 1588 to 1648. His reign of 59 years is the longest of all Danish monarchs, and the longest of all the Scandinavian monarchies.
Christian was born at Frederiksborg Castle in Denmark onApril 1577 as the first child and eldest son of King Frederick II of DenmarkNorway and Sofie of MecklenburgSchwerin. He was descended, through his mothers side, from king John of Denmark, and was thus the first descendant of King John to assume the crown since the deposition of King Christian II.
Source: Wikipedia