On 13 May 1627 [his grandfather] Alexander Oldenburg I Duke Schleswig Holstein Sonderburg 1573-1627 (age 54) died at Sønderborg. His son [his uncle] Johann Christian Oldenburg I Duke Schleswig Holstein Sonderburg Augustenburg 1607-1653 (age 20) succeeded I Duke Schleswig Holstein Sonderburg Augustenburg. On 13 May 1627 His son [his father] Ernest Günther Oldenburg I Duke Schleswig Holstein Sonderburg Augustenburg 1609-1689 (age 17) succeeded Günther I Duke Schleswig Holstein Sonderburg Augustenburg.
On 15 Jun 1651 [his father] Ernest Günther Oldenburg I Duke Schleswig Holstein Sonderburg Augustenburg 1609-1689 (age 41) and [his mother] Auguste Oldenburg Duchess Schleswig Holstein Sonderburg Augustenburg (age 17) were married. She by marriage Duchess Schleswig Holstein Sonderburg Augustenburg. The difference in their ages was 23 years. He the son of Alexander Oldenburg I Duke Schleswig Holstein Sonderburg 1573-1627 and Dorothea Schwarzburg Duchess Schleswig Holstein Sonderburg. They were first cousins.
On 18 Nov 1668 Frederick William Oldenburg I Duke Schleswig Holstein Sonderburg Augustenburg was born to Ernest Günther Oldenburg I Duke Schleswig Holstein Sonderburg Augustenburg 1609-1689 (age 59) and Auguste Oldenburg Duchess Schleswig Holstein Sonderburg Augustenburg (age 35). Coefficient of inbreeding 6.27%.
On 18 Jan 1689 [his father] Ernest Günther Oldenburg I Duke Schleswig Holstein Sonderburg Augustenburg 1609-1689 (age 79) died. His son Frederick William Oldenburg I Duke Schleswig Holstein Sonderburg Augustenburg (age 20) succeeded William I Duke Schleswig Holstein Sonderburg Augustenburg.
On 04 Aug 1696 [his son] Christian August Oldenburg I Duke Schleswig Holstein Sonderburg Augustenburg 1696-1754 was born to Frederick William Oldenburg I Duke Schleswig Holstein Sonderburg Augustenburg (age 27).
On 26 May 1701 [his mother] Auguste Oldenburg Duchess Schleswig Holstein Sonderburg Augustenburg (age 67) died.
On 03 Jun 1714 Frederick William Oldenburg I Duke Schleswig Holstein Sonderburg Augustenburg (age 45) died. His son [his son] Christian August Oldenburg I Duke Schleswig Holstein Sonderburg Augustenburg 1696-1754 (age 17) succeeded I Duke Schleswig Holstein Sonderburg Augustenburg. Frederikke Louise Unknown Duchess Schleswig Holstein Sonderburg Augustenburg by marriage Duchess Schleswig Holstein Sonderburg Augustenburg.
Paternal Family Tree: Oldenburg
Kings Wessex: Great x 19 Grand Son of King Edmund "Ironside" I of England
Kings England: Great x 14 Grand Son of King Henry "Curtmantle" II of England
Kings Scotland: Great x 17 Grand Son of Malcolm III King Scotland
Kings Franks: Great x 15 Grand Son of Louis VII King Franks
Kings France: Great x 12 Grand Son of Philip "Bold" III King France
Great x 4 Grandfather: Christian I King Denmark 1426-1481
Great x 3 Grandfather: King Frederick I of Denmark
Great x 4 Grandmother: Dorothea of Brandenburg
Great x 2 Grandfather: Christian III King Denmark 1503-1559 10 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandfather: John "Cicero" Hohenzollern Elector Brandenburg 1455-1499
Great x 3 Grandmother: Anna of Brandenburg 9 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Margaret of Thuringia 8 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 1 Grandfather: John "Younger" Oldenburg Duke Schleswig Holstein Sonderburg 1545-1622 11 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 2 Grandmother: Dorothea of Saxe Lauenburg Queen Consort Denmark and Norway
GrandFather: Alexander Oldenburg I Duke Schleswig Holstein Sonderburg 1573-1627 12 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandfather: Albert II Duke of Brunswick-Grubenhagen 8 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 3 Grandfather: Philip I Duke of Brunswick-Grubenhagen 9 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 2 Grandfather: Ernest III Duke of Brunswick-Grubenhagen 10 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 1 Grandmother: Elisabeth of Brunswick-Grubenhagen 11 x Great Grand Daughter of King Henry "Curtmantle" II of England
Father: Ernest Günther Oldenburg I Duke Schleswig Holstein Sonderburg Augustenburg 1609-1689 13 x Great Grand Son of King Henry "Curtmantle" II of England
GrandMother: Dorothea Schwarzburg Duchess Schleswig Holstein Sonderburg
Great x 4 Grandfather: Gerhard VI Count of Oldenburg
Great x 3 Grandfather: John V Count of Oldenburg and Delmenhorst
Great x 2 Grandfather: Anthony I Count of Oldenburg
Great x 1 Grandmother: Anna of Oldenburg
Frederick William Oldenburg I Duke Schleswig Holstein Sonderburg Augustenburg 1668-1714 14 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandfather: Christian I King Denmark 1426-1481
Great x 3 Grandfather: King Frederick I of Denmark
Great x 4 Grandmother: Dorothea of Brandenburg
Great x 2 Grandfather: Christian III King Denmark 1503-1559 10 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandfather: John "Cicero" Hohenzollern Elector Brandenburg 1455-1499
Great x 3 Grandmother: Anna of Brandenburg 9 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Margaret of Thuringia 8 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 1 Grandfather: John "Younger" Oldenburg Duke Schleswig Holstein Sonderburg 1545-1622 11 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 2 Grandmother: Dorothea of Saxe Lauenburg Queen Consort Denmark and Norway
GrandFather: Philip Oldenburg 12 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandfather: Albert II Duke of Brunswick-Grubenhagen 8 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 3 Grandfather: Philip I Duke of Brunswick-Grubenhagen 9 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 2 Grandfather: Ernest III Duke of Brunswick-Grubenhagen 10 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 1 Grandmother: Elisabeth of Brunswick-Grubenhagen 11 x Great Grand Daughter of King Henry "Curtmantle" II of England
Mother: Auguste Oldenburg Duchess Schleswig Holstein Sonderburg Augustenburg 13 x Great Grand Daughter of King Henry "Curtmantle" II of England