Paternal Family Tree: Oldenburg
On 28th October 1449 [his father] Christian I King of Denmark [aged 23] and [his mother] Dorothea of Brandenburg [aged 18] were married.
On 2nd February 1455 John King of Denmark Norway and Sweden was born to Christian I King of Denmark [aged 29] and Dorothea of Brandenburg [aged 24].
In July 1469 [his brother-in-law] King James III of Scotland [aged 17] and [his sister] Margaret Oldenburg Queen Consort Scotland [aged 13] were married at Holyrood Abbey, Holyrood. She by marriage Queen Consort Scotland. She the daughter of [his father] Christian I King of Denmark [aged 43] and [his mother] Dorothea of Brandenburg [aged 38]. He the son of King James II of Scotland and Mary of Guelders Queen Consort Scotland.
In 1477 John King of Denmark Norway and Sweden [aged 21] and [his future wife] Christina Queen Consort Denmark Norway and Sweden [aged 15] were engaged.
On 6th September 1478 John King of Denmark Norway and Sweden [aged 23] and Christina Queen Consort Denmark Norway and Sweden [aged 16] were married. He the son of Christian I King of Denmark [aged 52] and Dorothea of Brandenburg [aged 47].
In 1479 [his son] Hans Oldenburg was born to John King of Denmark Norway and Sweden [aged 23] and [his wife] Christina Queen Consort Denmark Norway and Sweden [aged 17]. He died aged one in 1480.
In 1480 [his son] Hans Oldenburg [aged 1] died.
In 1480 [his son] Ernst Oldenburg was born to John King of Denmark Norway and Sweden [aged 24] and [his wife] Christina Queen Consort Denmark Norway and Sweden [aged 18].
On 21st May 1481 [his father] Christian I King of Denmark [aged 55] died. His son John [aged 26] succeeded King of Denmark. [his wife] Christina Queen Consort Denmark Norway and Sweden [aged 19] by marriage Queen Consort Denmark.
On 1st July 1481 [his son] Christian II King of Denmark II King Norway was born to John King of Denmark Norway and Sweden [aged 26] and [his wife] Christina Queen Consort Denmark Norway and Sweden [aged 19]. He married 1515 his third cousin Isabella of Austria Queen Consort Denmark and Norway, daughter of Philip "Handsome Fair" King Castile and Joanna "The Mad" Trastámara Queen Castile, and had issue.
Chronicle of Abbot Ralph of Coggeshall
The Chronicle of Abbot Ralph of Coggeshall (Chronicon Anglicanum) is an indispensable medieval history that brings to life centuries of English and European affairs through the eyes of a learned Cistercian monk. Ralph of Coggeshall, abbot of the Abbey of Coggeshall in Essex in the early 13th century, continued and expanded his community’s chronicle, documenting events from the Norman Conquest of 1066 into the tumultuous reign of King Henry III. Blending eyewitness testimony, careful compilation, and the monastic commitment to record-keeping, this chronicle offers a rare narrative of political intrigue, royal power struggles, and social upheaval in England and beyond. Ralph’s work captures the reigns of pivotal figures such as Richard I and King John, providing invaluable insights into their characters, decisions, and the forces that shaped medieval rule. More than a simple annal, Chronicon Anglicanum conveys the texture of medieval life and governance, making it a rich source for scholars and readers fascinated by English history, monastic authorship, and the shaping of the medieval world.
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In 1483 John King of Denmark Norway and Sweden [aged 27] succeeded King Norway. [his wife] Christina Queen Consort Denmark Norway and Sweden [aged 21] by marriage Queen Consort Norway.
In 1484 [his son] Jacob Oldenburg was born to John King of Denmark Norway and Sweden [aged 28] and [his wife] Christina Queen Consort Denmark Norway and Sweden [aged 22].
On 24th June 1485 [his daughter] Elizabeth Oldenburg was born to John King of Denmark Norway and Sweden [aged 30] and [his wife] Christina Queen Consort Denmark Norway and Sweden [aged 23].
On 14th July 1486 [his sister] Margaret Oldenburg Queen Consort Scotland [aged 30] died.
On 10th November 1495 [his mother] Dorothea of Brandenburg [aged 64] died.
On 15th July 1497 [his son] Francis Oldenburg was born to John King of Denmark Norway and Sweden [aged 42] and [his wife] Christina Queen Consort Denmark Norway and Sweden [aged 35].
On 6th October 1497 John King of Denmark Norway and Sweden [aged 42] succeeded King Sweden. [his wife] Christina Queen Consort Denmark Norway and Sweden [aged 35] by marriage Queen Consort Sweden.
In 1499 King Henry VII of England and Ireland [aged 41] created a number of Garter Knights..
243rd Edward Poynings [aged 40].
244th John King of Denmark Norway and Sweden [aged 43].
245th Gilbert Talbot [aged 47].
246th King Henry VIII of England and Ireland [aged 7].
247th Henry Percy 5th Earl of Northumberland [aged 20].
248th Edward Stafford 3rd Duke of Buckingham [aged 20].
249th Charles Somerset 1st Earl of Worcester [aged 39]. The date sometimes given as 1496?
250th Edmund Pole 3rd Duke of Suffolk [aged 28].
251st Henry Bourchier 2nd Earl Essex 3rd Count of Eu.
252nd Thomas Lovell.
253rd Richard Pole [aged 37].
In 1500 [his son] Ernst Oldenburg [aged 20] died.
On 10th April 1502 [his brother] King Frederick I of Denmark [aged 30] and [his sister-in-law] Anna of Brandenburg [aged 14] were married. She the daughter of John "Cicero" Hohenzollern Elector Brandenburg and Margaret of Thuringia. He the son of [his father] Christian I King of Denmark and [his mother] Dorothea of Brandenburg. They were half second cousins.
On 1st April 1511 [his son] Francis Oldenburg [aged 13] died.
On 20th February 1513 John King of Denmark Norway and Sweden [aged 58] died. His son Christian [aged 31] succeeded II King of Denmark, II King Norway.
On 8th December 1521 [his former wife] Christina Queen Consort Denmark Norway and Sweden [aged 59] died.
James IV. to John King of Denmark. Credence for Magnus Beilde, a subject of the King of Denmark, who has been for some years in Scotland on James's service. Begs John to show himself an uncle now, as James means for life to act the part of a nephew and circumstances brook no delay.
Grandfather: Dietrich Count of Oldenburg 
father: Christian I King of Denmark
Grandmother: Helvig of Schauenburg
John King of Denmark Norway and Sweden
Great x 4 Grandfather: Frederick Hohenzollern
Great x 3 Grandfather: John Hohenzollern II Burgrave Nuremburg
Great x 2 Grandfather: Frederick Hohenzollern V Burgrave Nuremburg
Great x 1 Grandfather: Frederick I Elector Brandenburg
Grandfather: John "The Alchemist" Margrave of Brandenburg-Kulmbach
mother: Dorothea of Brandenburg
Great x 1 Grandfather: Rudolf III Duke of Saxe-Wittenberg
Grandmother: Barbara of Saxe-Wittenberg