On 01 Jan 1559 [his grandfather] Christian III King Denmark 1503-1559 (age 55) died. His son [his father] Frederick II King Denmark 1534-1588 (age 24) succeeded II King Denmark.
On 20 Jul 1572 [his father] Frederick II King Denmark 1534-1588 (age 38) and [his mother] Sophie Mecklenburg-Schwerin Queen Consort Denmark (age 14) were married. She by marriage Queen Consort Denmark. The difference in their ages was 23 years. He the son of Christian III King Denmark 1503-1559 and Dorothea of Saxe Lauenburg Queen Consort Denmark and Norway. They were second cousin once removed.
On 12 Apr 1577 Christian IV King Denmark was born to Frederick II King Denmark 1534-1588 (age 42) and Sophie Mecklenburg-Schwerin Queen Consort Denmark (age 19).
On 04 Apr 1588 [his father] Frederick II King Denmark 1534-1588 (age 53) died. His son Christian IV King Denmark (age 10) succeeded IV King Denmark.
In 1603 Christian IV King Denmark (age 25) was appointed 394th Knight of the Garter by King James I of England and Ireland and VI of Scotland (age 36)..
In 1603 William Segar (age 49) was appointed Deputy Garter King of Arms to invest Christian IV King Denmark (age 25) with the Order of the Garter.
On 18 Mar 1609 [his son] Frederick III King Denmark was born to Christian IV King Denmark (age 31).
On 14 Oct 1631 [his mother] Sophie Mecklenburg-Schwerin Queen Consort Denmark (age 74) died.
In 1643 [his son] Frederick III King Denmark (age 33) and [his daughter-in-law] Sophie Amalie Hanover Queen Consort Denmark (age 14) were married. She the daughter of George Hanover Duke Brunswick-Lüneburg 1582-1641 and Anne Eleonore Hesse Darmstadt Duchess Brunswick-Lüneburg (age 41). He the son of Christian IV King Denmark 1577-1648 (age 65).
On 28 Feb 1648 Christian IV King Denmark (age 70) died. His son [his son] Frederick III King Denmark (age 38) succeeded III King Denmark. [his daughter-in-law] Sophie Amalie Hanover Queen Consort Denmark (age 19) by marriage Queen Consort Denmark.
Paternal Family Tree: Oldenburg
Maternal Family Tree: Sophie Mecklenburg-Schwerin Queen Consort Denmark 1557-1631
Kings Wessex: Great x 17 Grand Son of King Edmund "Ironside" I of England
Kings England: Great x 12 Grand Son of King Henry "Curtmantle" II of England
Kings Scotland: Great x 15 Grand Son of Malcolm III King Scotland
Kings Franks: Great x 13 Grand Son of Louis VII King Franks
Kings France: Great x 10 Grand Son of Philip "Bold" III King France
Great x 3 Grandfather: Dietrich Count of Oldenburg
Great x 2 Grandfather: Christian I King Denmark 1426-1481
Great x 3 Grandmother: Helvig of Schauenburg
Great x 1 Grandfather: King Frederick I of Denmark
Great x 4 Grandfather: Frederick I Elector Brandenburg 1371-1440
Great x 3 Grandfather: John "The Alchemist" Margrave of Brandenburg-Kulmbach
Great x 2 Grandmother: Dorothea of Brandenburg
Great x 4 Grandfather: Rudolf III Duke of Saxe-Wittenberg
Great x 3 Grandmother: Barbara of Saxe-Wittenberg
GrandFather: Christian III King Denmark 1503-1559 10 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandfather: Frederick I Elector Brandenburg 1371-1440
Great x 3 Grandfather: Albert "Achilles" Hohenzollern Elector Brandenburg 1414-1486
Great x 2 Grandfather: John "Cicero" Hohenzollern Elector Brandenburg 1455-1499
Great x 1 Grandmother: Anna of Brandenburg 9 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 4 Grandfather: Frederick I Duke Saxony
Great x 3 Grandfather: William III Duke of Luxemburg 7 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Catherine of Brunswick-Lüneburg 6 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 2 Grandmother: Margaret of Thuringia 8 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 4 Grandfather: Albert Habsburg V Duke Austria 1397-1439 6 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 3 Grandmother: Anne Habsburg 7 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Elizabeth Luxemburg Duchess Austria 9 x Great Grand Daughter of King William "Conqueror" I of England
Father: Frederick II King Denmark 1534-1588 11 x Great Grand Son of King Henry "Curtmantle" II of England
GrandMother: Dorothea of Saxe Lauenburg Queen Consort Denmark and Norway
Christian IV King Denmark 1577-1648 12 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 3 Grandfather: Henry IV Duke of Mecklenburg
Great x 2 Grandfather: Magnus II Duke of Mecklenburg
Great x 1 Grandfather: Albrecht VII Duke Mecklenburg
GrandFather: Ulrich Mecklenburg-Schwerin 11 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandfather: Albert "Achilles" Hohenzollern Elector Brandenburg 1414-1486
Great x 3 Grandfather: John "Cicero" Hohenzollern Elector Brandenburg 1455-1499
Great x 2 Grandfather: Joachim "Nestor" Hohenzollern Elector Brandenburg 1484-1535 9 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandfather: William III Duke of Luxemburg 7 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 3 Grandmother: Margaret of Thuringia 8 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Anne Habsburg 7 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 1 Grandmother: Anna Hohenzollern Duchess Mecklenburg 10 x Great Grand Daughter of King Henry "Curtmantle" II of England
Mother: Sophie Mecklenburg-Schwerin Queen Consort Denmark 12 x Great Grand Daughter of King Henry "Curtmantle" II of England