Paternal Family Tree: Ivrea
Maternal Family Tree: Gersenda II Sabran Countess Provence 1180-1242
Before 29th May 1421 [her father] John II King Aragon [aged 22] and [her mother] Blanche Évreux Queen Consort Aragon [aged 33] were married. She by marriage Queen Consort Aragon. She the daughter of [her grandfather] Charles III King Navarre [aged 60] and [her grandmother] Eleanor of Castile Queen Consort Navarre [aged 58]. He the son of Ferdinand I King Aragon and Eleanor of Alberquerque Queen Consort Aragon [aged 47]. They were first cousin once removed. She a great x 5 granddaughter of King Henry III of England.
In 1424 Blanche Trastámara II Queen Navarre was born to John II King Aragon [aged 25] and Blanche Évreux Queen Consort Aragon [aged 36]. Coefficient of inbreeding 5.59%.
In 1436 [her brother-in-law] Gaston IV Count Foix [aged 13] and [her sister] Eleanor Trastámara Queen Consort Navarre [aged 9] were married. She by marriage Countess Foix. She the daughter of [her father] John II King Aragon [aged 37] and [her mother] Blanche Évreux Queen Consort Aragon [aged 48]. He the son of John I Count Foix [aged 54] and Jeanne Albret Countess Foix.
On 30th September 1439 [her brother] Charles "Viana" IV King Navarre [aged 18] and [her sister-in-law] Agnes de la Marck Queen Consort Navarre were married at Olite. She the daughter of Adolph de la Marck I Duke Cleves [aged 66] and Marie Valois Duchess Cleves [aged 46]. He the son of [her father] John II King Aragon [aged 41] and [her mother] Blanche Évreux Queen Consort Aragon [aged 51]. They were third cousins. She a great x 5 granddaughter of King Edward I of England.
In 1440 Henry IV King Castile [aged 14] and Blanche Trastámara II Queen Navarre [aged 16] were married. She the daughter of John II King Aragon [aged 41] and Blanche Évreux Queen Consort Aragon [aged 52]. He the son of John II King Castile [aged 34] and Maria Trastámara Queen Consort Castile [aged 44]. They were first cousins. He a great x 2 grandson of King Edward III of England.
In 1441 [her mother] Blanche Évreux Queen Consort Aragon [aged 53] died.
After 1441 [her father] John II King Aragon [aged 42] and [her step-mother] Juana Enríquez Queen Consort Aragon [aged 16] were married. She by marriage Queen Consort Aragon. The difference in their ages was 26 years. She the daughter of Fadrique Enríquez Count Melgar Count Rueda [aged 51] and Mariana Fernández Countess Melgar. He the son of [her grandfather] Ferdinand I King Aragon and [her grandmother] Eleanor of Alberquerque Queen Consort Aragon. They were second cousin once removed.
On 20th July 1454 [her father-in-law] John II King Castile [aged 49] died. His son [her husband] Henry [aged 29] succeeded IV King Castile. Blanche Trastámara II Queen Navarre [aged 30] by marriage Queen Consort Castile.
In 1455 [her husband] Henry IV King Castile [aged 29] and Joan Aviz Queen Consort Castile [aged 15] were married. She by marriage Queen Consort Castile. She the daughter of Edward "The Philosopher" I King Portugal and [her aunt] Eleanor Trastámara Queen Consort Portugal. He the son of [her father-in-law] John II King Castile and Maria Trastámara Queen Consort Castile. They were first cousins. He a great x 2 grandson of King Edward III of England. She a great x 2 granddaughter of King Edward III of England.
William of Worcester's Chronicle of England
William of Worcester, born around 1415, and died around 1482 was secretary to John Fastolf, the renowned soldier of the Hundred Years War, during which time he collected documents, letters, and wrote a record of events. Following their return to England in 1440 William was witness to major events. Twice in his chronicle he uses the first person: 1. when writing about the murder of Thomas, 7th Baron Scales, in 1460, he writes '… and I saw him lying naked in the cemetery near the porch of the church of St. Mary Overie in Southwark …' and 2. describing King Edward IV's entry into London in 1461 he writes '… proclaimed that all the people themselves were to recognize and acknowledge Edward as king. I was present and heard this, and immediately went down with them into the city'. William’s Chronicle is rich in detail. It is the source of much information about the Wars of the Roses, including the term 'Diabolical Marriage' to describe the marriage of Queen Elizabeth Woodville’s brother John’s marriage to Katherine, Dowager Duchess of Norfolk, he aged twenty, she sixty-five or more, and the story about a paper crown being placed in mockery on the severed head of Richard, 3rd Duke of York.
Available at Amazon in eBook and Paperback format.
On 27th June 1458 [her uncle] Alfonso V King Aragon [aged 62] died. His son Ferdinand [aged 35] succeeded I King Naples. Isabella Clermont Queen Consort Naples [aged 34] by marriage Queen Consort Naples. His brother [her father] John [aged 59] succeeded II King Aragon.
On 23rd September 1461 [her brother] Charles "Viana" IV King Navarre [aged 40] died. His sister Blanche [aged 37] succeeded II Queen Navarre.
In 1464 Blanche Trastámara II Queen Navarre [aged 40] died.
On 11th December 1474 [her former husband] Henry IV King Castile [aged 49] died. His half sister [her former sister-in-law] Isabella [aged 23] succeeded Queen Castile.
Kings Wessex: Great x 12 Grand Daughter of King Edmund "Ironside" I of England
Kings Godwinson: Great x 12 Grand Daughter of King Harold II of England
Kings England: Great x 6 Grand Daughter of King Henry III of England
Kings Scotland: Great x 10 Grand Daughter of King Malcolm III of Scotland
Kings France: Great x 2 Grand Daughter of King John "The Good" II of France
Kings Duke Aquitaine: Great x 16 Grand Daughter of Ranulf I Duke Aquitaine
Kings Spain: Daughter of John II King Aragon
Great x 4 Grandfather: Ferdinand IV King Castile IV King Leon 
3 x Great Grandson of Alfonso II King Aragon
Great x 3 Grandfather: Alfonso "Avenger" XI King Castile 4 x Great Grandson of Alfonso II King Aragon
Great x 4 Grandmother: Constance Burgundy Queen Consort Castile Queen Consort Leon 
3 x Great Granddaughter of King Henry "Curtmantle" II of England
Great x 2 Grandfather: Henry "Fratricide" II King Castile 5 x Great Grandson of Alfonso II King Aragon
Great x 3 Grandmother: Eleanor Guzman
Great x 1 Grandfather: John I King Castile 3 x Great Grandson of King Louis IX of France
Great x 4 Grandfather: Manuel Ivrea 2 x Great Grandson of Alfonso VII King Castile VII King Leon
Great x 3 Grandfather: Juan Manuel Prince of Villena 3 x Great Grandson of Alfonso VII King Castile VII King Leon
Great x 4 Grandmother: Beatrice Savoy 14 x Great Granddaughter of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 2 Grandmother: Juana Manuel Queen of Castile 2 x Great Granddaughter of King Louis IX of France
Great x 4 Grandfather: Ferdinando de la Cerda Grandson of King Louis IX of France
Great x 3 Grandmother: Blanca de la Cerda y Lara Great Granddaughter of King Louis IX of France
Great x 4 Grandmother: Juana "La Palomilla" Núñez de Lara 3 x Great Granddaughter of Alfonso II King Aragon
Grandfather: Ferdinand I King Aragon 4 x Great Grandson of King Louis IX of France
Great x 4 Grandfather: James "The Just" II King Aragon 
2 x Great Grandson of Alfonso II King Aragon
Great x 3 Grandfather: Alfonso IV King Aragon 2 x Great Grandson of King Louis VIII of France
Great x 4 Grandmother: Blanche Capet Queen Consort Aragon 
Great Granddaughter of King Louis VIII of France
Great x 2 Grandfather: Peter IV King Aragon 3 x Great Grandson of King Louis VIII of France
Great x 3 Grandmother: Teresa Enteca Queen Consort Aragon
Great x 1 Grandmother: Eleanor Barcelona Queen Consort Castile 4 x Great Granddaughter of King Louis VIII of France
Great x 4 Grandfather: Frederick III King Sicily 2 x Great Grandson of Alfonso II King Aragon
Great x 3 Grandfather: Peter II King Sicily 2 x Great Grandson of King Louis VIII of France
Great x 4 Grandmother: Eleanor Capet Great Granddaughter of King Louis VIII of France
Great x 2 Grandmother: Eleanor of Sicily Queen Consort Aragon 3 x Great Granddaughter of King Louis VIII of France
Father: John II King Aragon -2 x Great Grandson of John II King Aragon
Great x 4 Grandfather: Sancho IV King Castile IV King Leon 2 x Great Grandson of Alfonso II King Aragon
Great x 3 Grandfather: Ferdinand IV King Castile IV King Leon 3 x Great Grandson of Alfonso II King Aragon
Great x 4 Grandmother: Maria Molina Queen Consort Castile Queen Consort Leon
Great x 2 Grandfather: Alfonso "Avenger" XI King Castile 4 x Great Grandson of Alfonso II King Aragon
Great x 4 Grandfather: Denis I King Portugal 2 x Great Grandson of King Henry "Curtmantle" II of England
Great x 3 Grandmother: Constance Burgundy Queen Consort Castile Queen Consort Leon 3 x Great Granddaughter of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Elisabeth Barcelona Queen Consort Portugal 2 x Great Granddaughter of Alfonso II King Aragon
Great x 1 Grandfather: Sancho Alfonso Ivrea 5 x Great Grandson of Alfonso II King Aragon
Great x 2 Grandmother: Eleanor Guzman
Grandmother: Eleanor of Alberquerque Queen Consort Aragon 6 x Great Granddaughter of Alfonso II King Aragon
Great x 4 Grandfather: Denis I King Portugal 2 x Great Grandson of King Henry "Curtmantle" II of England
Great x 3 Grandfather: Alfonso "Brave" IV King Portugal 3 x Great Grandson of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Elisabeth Barcelona Queen Consort Portugal 2 x Great Granddaughter of Alfonso II King Aragon
Great x 2 Grandfather: Peter I King Portugal 4 x Great Grandson of King Henry "Curtmantle" II of England
Great x 4 Grandfather: Sancho IV King Castile IV King Leon 2 x Great Grandson of Alfonso II King Aragon
Great x 3 Grandmother: Beatrice Ivrea Queen Consort Portugal 3 x Great Granddaughter of Alfonso II King Aragon
Great x 4 Grandmother: Maria Molina Queen Consort Castile Queen Consort Leon
Great x 1 Grandmother: Beatrice Burgundy 5 x Great Granddaughter of King Henry "Curtmantle" II of England
Great x 3 Grandfather: Pedro Fernández de Castro
Great x 2 Grandmother: Inês Castro
Blanche Trastámara II Queen Navarre daughter of John II King Aragon
Great x 4 Grandfather: King Philip III of France son of King Louis IX of France
Great x 3 Grandfather: Louis I Count Évreux son of King Philip III of France
Great x 4 Grandmother: Maria of Brabant Queen Consort France 3 x Great Granddaughter of King Stephen I England
Great x 2 Grandfather: Philip "Noble" III King Navarre Grandson of King Philip III of France
Great x 4 Grandfather: Philip Artois Great Grandson of King Louis VIII of France
Great x 3 Grandmother: Margaret Artois Countess Évreux Great Granddaughter of King Henry III of England
Great x 4 Grandmother: Blanche Capet Granddaughter of King Henry III of England
Great x 1 Grandfather: Charles "Bad" II King Navarre Grandson of Louis X King France I Navarre
Great x 4 Grandfather: King Philip IV of France son of King Philip III of France
Great x 3 Grandfather: Louis X King France I Navarre son of King Philip IV of France
Great x 4 Grandmother: Joan Blois I Queen Navarre 
Great Granddaughter of King Louis VIII of France
Great x 2 Grandmother: Joan Capet II Queen Navarre daughter of Louis X King France I Navarre
Great x 4 Grandfather: Robert II Duke Burgundy 5 x Great Grandson of King William "Conqueror" I of England
Great x 3 Grandmother: Margaret of Burgundy Queen Consort France Granddaughter of King Louis IX of France
Great x 4 Grandmother: Agnes Capet Duchess Burgundy daughter of King Louis IX of France
Grandfather: Charles III King Navarre Grandson of King John "The Good" II of France
Great x 4 Grandfather: Charles Valois I Count Valois son of King Philip III of France
Great x 3 Grandfather: King Philip "Fortunate" VI of France Grandson of King Philip III of France
Great x 4 Grandmother: Margaret Capet Countess Valois Great Granddaughter of King Louis VIII of France
Great x 2 Grandfather: King John "The Good" II of France son of King Philip "Fortunate" VI of France
Great x 4 Grandfather: Robert II Duke Burgundy 5 x Great Grandson of King William "Conqueror" I of England
Great x 3 Grandmother: Joan "Lame" Burgundy Queen Consort France Granddaughter of King Louis IX of France
Great x 4 Grandmother: Agnes Capet Duchess Burgundy daughter of King Louis IX of France
Great x 1 Grandmother: Joan Valois Queen Consort Navarre daughter of King John "The Good" II of France
Great x 4 Grandfather: Henry Luxembourg VII Holy Roman Emperor 
5 x Great Grandson of King William "Conqueror" I of England
Great x 3 Grandfather: King John I of Bohemia 6 x Great Grandson of King William "Conqueror" I of England
Great x 4 Grandmother: Margaret Brabant Countess Luxembourg and Namur
Great x 2 Grandmother: Bonne Luxembourg Queen Consort France 7 x Great Granddaughter of King William "Conqueror" I of England
Great x 4 Grandfather: King Wenceslaus II of Bohemia and Poland 6 x Great Grandson of King Harold II of England
Great x 3 Grandmother: Queen Elizabeth of Bohemia 7 x Great Granddaughter of King Harold II of England
Great x 4 Grandmother: Queen Judith of Bohemia and Poland 12 x Great Granddaughter of King Alfred "The Great" of Wessex
Mother: Blanche Évreux Queen Consort Aragon Great Granddaughter of King John "The Good" II of France
Great x 4 Grandfather: Sancho IV King Castile IV King Leon 2 x Great Grandson of Alfonso II King Aragon
Great x 3 Grandfather: Ferdinand IV King Castile IV King Leon 3 x Great Grandson of Alfonso II King Aragon
Great x 4 Grandmother: Maria Molina Queen Consort Castile Queen Consort Leon
Great x 2 Grandfather: Alfonso "Avenger" XI King Castile 4 x Great Grandson of Alfonso II King Aragon
Great x 4 Grandfather: Denis I King Portugal 2 x Great Grandson of King Henry "Curtmantle" II of England
Great x 3 Grandmother: Constance Burgundy Queen Consort Castile Queen Consort Leon 3 x Great Granddaughter of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Elisabeth Barcelona Queen Consort Portugal 2 x Great Granddaughter of Alfonso II King Aragon
Great x 1 Grandfather: Henry "Fratricide" II King Castile 5 x Great Grandson of Alfonso II King Aragon
Great x 2 Grandmother: Eleanor Guzman
Grandmother: Eleanor of Castile Queen Consort Navarre 3 x Great Granddaughter of King Louis IX of France
Great x 4 Grandfather: Ferdinand III King Castile III King Leon Great Grandson of Alfonso VII King Castile VII King Leon
Great x 3 Grandfather: Manuel Ivrea 2 x Great Grandson of Alfonso VII King Castile VII King Leon
Great x 4 Grandmother: Elisabeth Hohenstaufen Queen Consort Castile Queen Consort Leon 
9 x Great Granddaughter of King Alfred "The Great" of Wessex
Great x 2 Grandfather: Juan Manuel Prince of Villena 3 x Great Grandson of Alfonso VII King Castile VII King Leon
Great x 4 Grandfather: Amedeo Savoy IV Count Savoy 13 x Great Grandson of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 3 Grandmother: Beatrice Savoy 14 x Great Granddaughter of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 4 Grandmother: Cecilia Baux Countess Savoy 
Great x 1 Grandmother: Juana Manuel Queen of Castile 2 x Great Granddaughter of King Louis IX of France
Great x 4 Grandfather: Ferdinand de la Cerda Ivrea 2 x Great Grandson of Alfonso II King Aragon
Great x 3 Grandfather: Ferdinando de la Cerda Grandson of King Louis IX of France
Great x 4 Grandmother: Blanche Capet daughter of King Louis IX of France
Great x 2 Grandmother: Blanca de la Cerda y Lara Great Granddaughter of King Louis IX of France
Great x 4 Grandfather: Juan Núñez de Lara
Great x 3 Grandmother: Juana "La Palomilla" Núñez de Lara 3 x Great Granddaughter of Alfonso II King Aragon
Great x 4 Grandmother: Teresa Díaz de Haro 2 x Great Granddaughter of Alfonso II King Aragon