Joan Aviz Queen Consort Castile 1439-1475

Paternal Family Tree: Capet

Maternal Family Tree: Inês Castro 1325-1355

On 22nd September 1428 [her father] Edward "The Philosopher" I King Portugal [aged 36] and [her mother] Eleanor Trastámara Queen Consort Portugal were married. She by marriage Queen Consort Portugal. She the daughter of [her grandfather] Ferdinand I King Aragon and [her grandmother] Eleanor of Alberquerque Queen Consort Aragon [aged 54]. He the son of King John I of Portugal [aged 76] and Philippa of Lancaster Queen Consort Portugal. They were first cousin once removed. He a great grandson of King Edward III of England.

On 13th September 1438 [her father] Edward "The Philosopher" I King Portugal [aged 46] died. His son [her future son-in-law] Alfonso [aged 6] succeeded V King Portugal.

On 31st March 1439 Joan Aviz Queen Consort Castile was born to Edward "The Philosopher" I King Portugal and Eleanor Trastámara Queen Consort Portugal. She a great x 2 granddaughter of King Edward III of England. Coefficient of inbreeding 4.40%.

In 1440 [her future husband] Henry IV King Castile [aged 14] and Blanche Trastámara II Queen Navarre [aged 16] were married. She the daughter of [her uncle] 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 [her aunt] Maria Trastámara Queen Consort Castile [aged 44]. They were first cousins. He a great x 2 grandson of King Edward III of England.

On 16th March 1452 [her brother-in-law] Frederick "Peaceful or Fat" Habsburg III Holy Roman Emperor [aged 36] was appointed III Holy Roman Emperor at St Peter's Basilica, Vatican. In the afternoon of the same day Frederick "Peaceful or Fat" Habsburg III Holy Roman Emperor and [her sister] Eleanor Aviz Holy Roman Empress [aged 17] were married at St Peter's Basilica, Vatican. She by marriage Holy Roman Empress. She the daughter of [her father] Edward "The Philosopher" I King Portugal and [her mother] Eleanor Trastámara Queen Consort Portugal. He the son of Ernest "The Iron" Habsburg I Duke Austria and Cymburgis Masovia Duchess Austria.

On 20th July 1454 John II King Castile [aged 49] died. His son [her future husband] Henry [aged 29] succeeded IV King Castile. Blanche Trastámara II Queen Navarre [aged 30] by marriage Queen Consort Castile.

In 1455 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 Eleanor Trastámara Queen Consort Portugal. He the son of 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.

On 21st February 1462 [her daughter] Joanna "La Beltraneja" Trastámara Queen Consort Portugal was born to [her husband] Henry IV King Castile [aged 37] and Joan Aviz Queen Consort Castile [aged 22]. Her nickname "La Beltraneja" a reference to her supposed illegitimacy; she was suspected of being the child of Beltrán de la Cueva 1st Duke of Alburquerque [aged 19]. She was Henry and Joan's only child. She a great x 3 granddaughter of King Edward III of England. Coefficient of inbreeding 11.39%. She married 1475 her uncle Alfonso "The African" V King Portugal, son of Edward "The Philosopher" I King Portugal and Eleanor Trastámara Queen Consort Portugal.

On 3rd September 1467 [her sister] Eleanor Aviz Holy Roman Empress [aged 32] died.

On 19th October 1469 Ferdinand II King Aragon [aged 17] and [her sister-in-law] Isabella Queen Castile [aged 18] were married. She by marriage Queen Consort Aragon. She the daughter of John II King Castile and Isabella Aviz Queen Consort Castile [aged 41]. He the son of [her uncle] John II King Aragon [aged 71] and Juana Enríquez Queen Consort Aragon. They were second cousins. She a great x 2 granddaughter of King Edward III of England.

Death of King Henry IV of Castile

On 11th December 1474 [her husband] Henry IV King Castile [aged 49] died. His half sister [her sister-in-law] Isabella [aged 23] succeeded Queen Castile.

The Deeds of the Dukes of Normandy

The Gesta Normannorum Ducum [The Deeds of the Dukes of Normandy] is a landmark medieval chronicle tracing the rise and fall of the Norman dynasty from its early roots through the pivotal events surrounding the Norman Conquest of England. Originally penned in Latin by the monk William of Jumièges shortly before 1060 and later expanded at the behest of William the Conqueror, the work chronicles the deeds, politics, battles, and leadership of the Norman dukes, especially William’s own claim to the English throne. The narrative combines earlier historical sources with firsthand information and oral testimony to present an authoritative account of Normandy’s transformation from a Viking settlement into one of medieval Europe’s most powerful realms. William’s history emphasizes the legitimacy, military prowess, and governance of the Norman line, framing their expansion, including the conquest of England, as both divinely sanctioned and noble in purpose. Later chroniclers such as Orderic Vitalis and Robert of Torigni continued the history, extending the coverage into the 12th century, providing broader context on ducal rule and its impact. Today this classic work remains a foundational source for understanding Norman identity, medieval statesmanship, and the historical forces that reshaped England and Western Europe between 800AD and 1100AD.

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In 1475 [her son-in-law] Alfonso "The African" V King Portugal [aged 42] and Joanna "La Beltraneja" Trastámara Queen Consort Portugal [aged 12] were married. She by marriage Queen Consort Portugal. The difference in their ages was 30 years. She the daughter of Henry IV King Castile and Joan Aviz Queen Consort Castile [aged 35]. He the son of Edward "The Philosopher" I King Portugal and Eleanor Trastámara Queen Consort Portugal. They were uncle and niece. He a great x 2 grandson of King Edward III of England. She a great x 3 granddaughter of King Edward III of England.

On 13th June 1475 Joan Aviz Queen Consort Castile [aged 36] died.

Ancestors of Joan Aviz Queen Consort Castile 1439-1475

Great x 4 Grandfather: Alfonso III King Portugal Great Grandson of King Henry "Curtmantle" II of England

Great x 3 Grandfather: Denis I King Portugal 2 x Great Grandson of King Henry "Curtmantle" II of England

Great x 4 Grandmother: Beatrice Queen Consort Portugal 3 x Great Granddaughter of Alfonso VII King Castile VII King Leon

Great x 2 Grandfather: Alfonso "Brave" IV King Portugal 3 x Great Grandson of King Henry "Curtmantle" II of England

Great x 4 Grandfather: Peter III King Aragon Great Grandson of Alfonso II King Aragon

Great x 3 Grandmother: Elisabeth Barcelona Queen Consort Portugal 2 x Great Granddaughter of Alfonso II King Aragon

Great x 4 Grandmother: Constance Hohenstaufen Queen Consort Aragon 5 x Great Granddaughter of King William "Conqueror" I of England

Great x 1 Grandfather: Peter I King Portugal 4 x Great Grandson of King Henry "Curtmantle" II of England

Great x 4 Grandfather: Alfonso X King Castile X King Leon 2 x Great Grandson of Alfonso VII King Castile VII King Leon

Great x 3 Grandfather: Sancho IV King Castile IV King Leon 2 x Great Grandson of Alfonso II King Aragon

Great x 4 Grandmother: Violante Barcelona Queen Consort Castile Queen Consort Leon Great Granddaughter of Alfonso II King Aragon

Great x 2 Grandmother: Beatrice Ivrea Queen Consort Portugal 3 x Great Granddaughter of Alfonso II King Aragon

Great x 3 Grandmother: Maria Molina Queen Consort Castile Queen Consort Leon

Grandfather: King John I of Portugal 5 x Great Grandson of King Henry "Curtmantle" II of England

Great x 2 Grandfather: Pedro Fernández de Castro

Great x 1 Grandmother: Inês Castro

father: Edward "The Philosopher" I King Portugal Great Grandson of King Edward III of England

Great x 4 Grandfather: King Edward I of England son of King Henry III of England

Great x 3 Grandfather: King Edward II of England son of King Edward I of England

Great x 4 Grandmother: Eleanor of Castile Queen Consort England 2 x Great Granddaughter of Alfonso VII King Castile VII King Leon

Great x 2 Grandfather: King Edward III of England son of King Edward II of England

Great x 4 Grandfather: King Philip IV of France son of King Philip III of France

Great x 3 Grandmother: Isabella of France Queen Consort England daughter 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 1 Grandfather: John of Gaunt 1st Duke Lancaster son of King Edward III of England

Great x 4 Grandfather: John of Avesnes II Count Hainaut II Count Holland 3 x Great Grandson of King Stephen I England

Great x 3 Grandfather: William of Avesnes I Count Hainaut III Count Avesnes III Count Holland II Count Zeeland 4 x Great Grandson of King Stephen I England

Great x 4 Grandmother: Philippa Luxemburg Countess Hainaut and Holland 5 x Great Granddaughter of King William "Conqueror" I of England

Great x 2 Grandmother: Philippa of Hainaut Queen Consort England Great Granddaughter of King Philip III of France

Great x 4 Grandfather: Charles Valois I Count Valois son of King Philip III of France

Great x 3 Grandmother: Joan Valois Countess Zeeland Holland Avesnes and Hainaut Granddaughter of King Philip III of France

Great x 4 Grandmother: Margaret Capet Countess Valois Great Granddaughter of King Louis VIII of France

Grandmother: Philippa of Lancaster Queen Consort Portugal Granddaughter of King Edward III of England

Great x 4 Grandfather: Edmund "Crouchback" Plantagenet 1st Earl of Leicester 1st Earl Lancaster son of King Henry III of England

Great x 3 Grandfather: Henry Plantagenet 3rd Earl of Leicester 3rd Earl Lancaster Grandson of King Henry III of England

Great x 4 Grandmother: Blanche Capet Queen Navarre Granddaughter of King Louis VIII of France

Great x 2 Grandfather: Henry of Grosmont 1st Duke Lancaster Great Grandson of King Henry III of England

Great x 4 Grandfather: Patrick Chaworth

Great x 3 Grandmother: Maud Chaworth 9 x Great Granddaughter of Hugh I King of the Franks

Great x 4 Grandmother: Isabella Beauchamp 8 x Great Granddaughter of Hugh I King of the Franks

Great x 1 Grandmother: Blanche Duchess of Lancaster 2 x Great Granddaughter of King Henry III of England

Great x 4 Grandfather: Louis Brienne Viscount Beaumont 2 x Great Grandson of King Henry "Curtmantle" II of England

Great x 3 Grandfather: Henry Beaumont Earl Buchan 3 x Great Grandson of King Henry I "Beauclerc" England

Great x 4 Grandmother: Agnes Beaumont Sarthe 2 x Great Granddaughter of King Henry I "Beauclerc" England

Great x 2 Grandmother: Isabel Beaumont Duchess Lancaster 4 x Great Granddaughter of King Henry I "Beauclerc" England

Great x 4 Grandfather: Alexander Comyn 4 x Great Grandson of King David I of Scotland

Great x 3 Grandmother: Alice Comyn 4th Countess Buchan 5 x Great Granddaughter of King David I of Scotland

Great x 4 Grandmother: Joanna Latimer 11 x Great Granddaughter of Maredudd ab Owain King Deheubarth King Powys King Gwynedd

Joan Aviz Queen Consort Castile 2 x Great Granddaughter of King Edward III of England

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

mother: Eleanor Trastámara Queen Consort Portugal 5 x Great Granddaughter of King Louis IX 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: 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

Joan Aviz Queen Consort Castile 1439-1475