On 19 Aug 1568 [his father] John "Younger" Oldenburg Duke Schleswig Holstein Sonderburg 1545-1622 (age 23) and [his mother] Elisabeth of Brunswick-Grubenhagen (age 18) were married. He the son of Christian III King Denmark 1503-1559 and Dorothea of Saxe Lauenburg Queen Consort Denmark and Norway (age 57).
On 20 Jan 1573 Alexander Oldenburg I Duke Schleswig Holstein Sonderburg was born to John "Younger" Oldenburg Duke Schleswig Holstein Sonderburg 1545-1622 (age 27) and Elisabeth of Brunswick-Grubenhagen (age 22) at Sønderborg.
On 11 Feb 1586 [his mother] Elisabeth of Brunswick-Grubenhagen (age 35) died.
On 14 Feb 1588 [his father] John "Younger" Oldenburg Duke Schleswig Holstein Sonderburg 1545-1622 (age 42) and [his step-mother] Agnes Hedwig of Anhalt (age 14) were married. The difference in their ages was 27 years. He the son of Christian III King Denmark 1503-1559 and Dorothea of Saxe Lauenburg Queen Consort Denmark and Norway.
On 26 Nov 1604 Alexander Oldenburg I Duke Schleswig Holstein Sonderburg (age 31) and 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 [his son] Johann Christian Oldenburg I Duke Schleswig Holstein Sonderburg Augustenburg 1607-1653 was born to Alexander Oldenburg I Duke Schleswig Holstein Sonderburg (age 34) and [his wife] Dorothea Schwarzburg Duchess Schleswig Holstein Sonderburg (age 28).
On 12 Sep 1608 [his son] Alexander Heinrich Oldenburg I Duke Schleswig Holstein Sonderburg Augustenburg 1608-1657 was born to Alexander Oldenburg I Duke Schleswig Holstein Sonderburg (age 35) and [his wife] Dorothea Schwarzburg Duchess Schleswig Holstein Sonderburg (age 29).
On 14 Oct 1609 [his son] Ernest Günther Oldenburg I Duke Schleswig Holstein Sonderburg Augustenburg 1609-1689 was born to Alexander Oldenburg I Duke Schleswig Holstein Sonderburg (age 36) and [his wife] Dorothea Schwarzburg Duchess Schleswig Holstein Sonderburg (age 30).
On 18 Dec 1611 [his son] Georg Friedrich Oldenburg was born to Alexander Oldenburg I Duke Schleswig Holstein Sonderburg (age 38) and [his wife] Dorothea Schwarzburg Duchess Schleswig Holstein Sonderburg (age 32).
On 11 Nov 1612 [his son] August Philipp Oldenburg I Duke Schleswig-Holstein-Sonderburg-Beck 1612-1675 was born to Alexander Oldenburg I Duke Schleswig Holstein Sonderburg (age 39) and [his wife] Dorothea Schwarzburg Duchess Schleswig Holstein Sonderburg (age 33) at Sønderborg.
On 02 Nov 1613 [his son] Adolph Oldenburg was born to Alexander Oldenburg I Duke Schleswig Holstein Sonderburg (age 40) and [his wife] Dorothea Schwarzburg Duchess Schleswig Holstein Sonderburg (age 34).
On 05 Feb 1615 [his daughter] Anna Elisabeth Oldenburg was born to Alexander Oldenburg I Duke Schleswig Holstein Sonderburg (age 42) and [his wife] Dorothea Schwarzburg Duchess Schleswig Holstein Sonderburg (age 36).
On 01 Feb 1616 [his son] Adolph Oldenburg (age 2) died.
On 02 Apr 1616 [his son] Wilhelm Anton Oldenburg died.
On 02 Apr 1616 [his son] Wilhelm Anton Oldenburg was born to Alexander Oldenburg I Duke Schleswig Holstein Sonderburg (age 43) and [his wife] Dorothea Schwarzburg Duchess Schleswig Holstein Sonderburg (age 37).
On 28 Jun 1617 [his daughter] Sophie Katharina Oldenburg was born to Alexander Oldenburg I Duke Schleswig Holstein Sonderburg (age 44) and [his wife] Dorothea Schwarzburg Duchess Schleswig Holstein Sonderburg (age 38).
On 19 Feb 1619 [his daughter] Anna Elisabeth Oldenburg (age 4) died.
On 27 Feb 1619 [his daughter] Eleonore Sabine Oldenburg died.
On 27 Feb 1619 [his daughter] Eleonore Sabine Oldenburg was born to Alexander Oldenburg I Duke Schleswig Holstein Sonderburg (age 46) and [his wife] Dorothea Schwarzburg Duchess Schleswig Holstein Sonderburg (age 40).
Before 09 Oct 1622 [his father] John "Younger" Oldenburg Duke Schleswig Holstein Sonderburg 1545-1622 (age 77) was created 1st Duke Schleswig Holstein Sonderburg Augustenburg.
On 09 Oct 1622 [his father] John "Younger" Oldenburg Duke Schleswig Holstein Sonderburg 1545-1622 (age 77) died. His son Alexander Oldenburg I Duke Schleswig Holstein Sonderburg (age 49) succeeded I Duke Schleswig Holstein Sonderburg Augustenburg.
On 13 May 1627 Alexander Oldenburg I Duke Schleswig Holstein Sonderburg (age 54) died at Sønderborg. His son [his son] 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 son] Ernest Günther Oldenburg I Duke Schleswig Holstein Sonderburg Augustenburg 1609-1689 (age 17) succeeded Günther I Duke Schleswig Holstein Sonderburg Augustenburg.
In 1639 [his former wife] Dorothea Schwarzburg Duchess Schleswig Holstein Sonderburg (age 60) died.
[his son] Philip Louis Oldenburg was born to Alexander Oldenburg I Duke Schleswig Holstein Sonderburg and Dorothea Schwarzburg Duchess Schleswig Holstein Sonderburg.
Paternal Family Tree: Oldenburg
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: John "Younger" Oldenburg Duke Schleswig Holstein Sonderburg 1545-1622 11 x Great Grand Son of King Henry "Curtmantle" II of England
GrandMother: Dorothea of Saxe Lauenburg Queen Consort Denmark and Norway
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 I Duke of Brunswick-Grubenhagen
Great x 3 Grandfather: 7 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Agnes Guelph 6 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 2 Grandfather: Albert II Duke of Brunswick-Grubenhagen 8 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandfather: Otto I Duke of Brunswick-Göttingen
Great x 3 Grandmother: Elisabeth of Brunswick-Göttingen 8 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Margarete of Berg 7 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 1 Grandfather: Philip I Duke of Brunswick-Grubenhagen 9 x Great Grand Son of King Henry "Curtmantle" II of England
GrandFather: Ernest III Duke of Brunswick-Grubenhagen 10 x Great Grand Son of King Henry "Curtmantle" II of England
Mother: Elisabeth of Brunswick-Grubenhagen 11 x Great Grand Daughter of King Henry "Curtmantle" II of England