On 26 Nov 1604 [his father] Alexander Oldenburg I Duke Schleswig Holstein Sonderburg 1573-1627 (age 31) and [his mother] Dorothea Schwarzburg Duchess Schleswig Holstein Sonderburg (age 25) were married at Sønderborg. She by marriage Duchess Schleswig Holstein Sonderburg Augustenburg. She the daughter of and Anna of Oldenburg. He the son of John "Younger" Oldenburg Duke Schleswig Holstein Sonderburg 1545-1622 (age 59) and Elisabeth of Brunswick-Grubenhagen. They were half fourth cousins.
On 26 Apr 1607 Johann Christian Oldenburg I Duke Schleswig Holstein Sonderburg Augustenburg was born to Alexander Oldenburg I Duke Schleswig Holstein Sonderburg 1573-1627 (age 34) and Dorothea Schwarzburg Duchess Schleswig Holstein Sonderburg (age 28).
On 09 Oct 1622 [his grandfather] John "Younger" Oldenburg Duke Schleswig Holstein Sonderburg 1545-1622 (age 77) died. His son [his father] Alexander Oldenburg I Duke Schleswig Holstein Sonderburg 1573-1627 (age 49) succeeded I Duke Schleswig Holstein Sonderburg Augustenburg.
On 13 May 1627 [his father] Alexander Oldenburg I Duke Schleswig Holstein Sonderburg 1573-1627 (age 54) died at Sønderborg. His son Johann Christian Oldenburg I Duke Schleswig Holstein Sonderburg Augustenburg (age 20) succeeded I Duke Schleswig Holstein Sonderburg Augustenburg. On 13 May 1627 His son [his brother] Ernest Günther Oldenburg I Duke Schleswig Holstein Sonderburg Augustenburg 1609-1689 (age 17) succeeded Günther I Duke Schleswig Holstein Sonderburg Augustenburg.
In 1639 [his mother] Dorothea Schwarzburg Duchess Schleswig Holstein Sonderburg (age 60) died.
On 28 Jun 1653 Johann Christian Oldenburg I Duke Schleswig Holstein Sonderburg Augustenburg (age 46) died. His brother [his brother] Alexander Heinrich Oldenburg I Duke Schleswig Holstein Sonderburg Augustenburg 1608-1657 (age 44) succeeded I Duke Schleswig Holstein Sonderburg Augustenburg.
Paternal Family Tree: Oldenburg
Kings Wessex: Great x 18 Grand Son of King Edmund "Ironside" I of England
Kings England: Great x 13 Grand Son of King Henry "Curtmantle" II of England
Kings Scotland: Great x 16 Grand Son of Malcolm III King Scotland
Kings Franks: Great x 14 Grand Son of Louis VII King Franks
Kings France: Great x 11 Grand Son of Philip "Bold" III King France
Great x 4 Grandfather: Dietrich Count of Oldenburg
Great x 3 Grandfather: Christian I King Denmark 1426-1481
Great x 4 Grandmother: Helvig of Schauenburg
Great x 2 Grandfather: King Frederick I of Denmark
Great x 4 Grandfather: John "The Alchemist" Margrave of Brandenburg-Kulmbach
Great x 3 Grandmother: Dorothea of Brandenburg
Great x 4 Grandmother: Barbara of Saxe-Wittenberg
Great x 1 Grandfather: Christian III King Denmark 1503-1559 10 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 Grandmother: Anna of Brandenburg 9 x Great Grand Daughter 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
GrandFather: John "Younger" Oldenburg Duke Schleswig Holstein Sonderburg 1545-1622 11 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 1 Grandmother: Dorothea of Saxe Lauenburg Queen Consort Denmark and Norway
Father: Alexander Oldenburg I Duke Schleswig Holstein Sonderburg 1573-1627 12 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 3 Grandfather: Albert II Duke of Brunswick-Grubenhagen 8 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Elisabeth of Brunswick-Göttingen 8 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 2 Grandfather: Philip I Duke of Brunswick-Grubenhagen 9 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 1 Grandfather: Ernest III Duke of Brunswick-Grubenhagen 10 x Great Grand Son of King Henry "Curtmantle" II of England
GrandMother: Elisabeth of Brunswick-Grubenhagen 11 x Great Grand Daughter of King Henry "Curtmantle" II of England
Johann Christian Oldenburg I Duke Schleswig Holstein Sonderburg Augustenburg 1607-1653 13 x Great Grand Son of King Henry "Curtmantle" II of England
Mother: Dorothea Schwarzburg Duchess Schleswig Holstein Sonderburg
Great x 4 Grandfather: Dietrich Count of Oldenburg
Great x 3 Grandfather: Gerhard VI Count of Oldenburg
Great x 2 Grandfather: John V Count of Oldenburg and Delmenhorst
Great x 1 Grandfather: Anthony I Count of Oldenburg
GrandMother: Anna of Oldenburg