Paternal Family Tree: Ivrea
Maternal Family Tree: María González Henestrosa Lady Villagera -1356
Before 17th September 1388 [her father] Henry III King Castile [aged 8] and [her mother] Catherine of Lancaster Queen Consort Castile [aged 15] were married at Palencia Cathedral [Map]. She by marriage Queen Consort Castile. She the daughter of [her grandfather] John of Gaunt 1st Duke Lancaster [aged 48] and [her grandmother] Constance of Castile Duchess of Lancaster [aged 34]. He the son of John I King Castile [aged 30] and Eleanor Barcelona Queen Consort Castile. They were half second cousins. She a granddaughter of King Edward III of England.
On 14th September 1401 Maria Trastámara Queen Consort Aragon was born to Henry III King Castile [aged 21] and Catherine of Lancaster Queen Consort Castile [aged 28]. She a great granddaughter of King Edward III of England. Coefficient of inbreeding 2.16%.
On 25th December 1406 [her father] Henry III King Castile [aged 27] died. His son [her brother] John [aged 1] succeeded II King Castile.
Letters. 1412. Letter XXXIII. Catherine [aged 38] daughter of John of Gaunt, Queen of Castile and Leon, to her brother Henry IV [aged 44].
Most high and powerful Don Henry, by God's grace king of England and France, lord of Ireland, my most dear and beloved, and with all my heart, and with my entire mind, most cherished brother and lord, I, undoubted Queen of Castile and Leon, mother of the king and his guardian, and Governor of his realms, send to recommend myself to your favour and benediction, and much to salute you as him, to whom I pray that God would give as much health and life with honour as you yourself desire.
Most dear and beloved brother and lord, I entreat that by all means, as continually as you can, you will certify and let me know of your health, and life, and good estate and of the Queen [aged 42] your companion, my dearest and best-loved sister; and of the Prince of Wales [aged 25], and the other princes your sons, my dearest and best-loved nephews; by which you will do me most singular pleasure and honour, and it will be a thing which will greatly please me, since it ia one of the most principal things of this world at which my heart is most joyous and consoled. And since, dearest and best-loved brother and lord, I know well that you will be pleased with the same thing, I certify and let you know, that, at the time when this letter was written, the said king my son [aged 6], your dearest and best-loved nephew, and I, and the infantas Donna Maria [aged 10] and Donna Catalina [aged 9] my daughters, your dearest and best-loved nieces, are well, and in good disposition of our persons; praise to God, who thus grant us to continue, and by his same grace grant it to you at all times.
Moreover, dearest and best-loved brother and lord, we give you to know that, having seen your writing which you sent me by John de Samora, your messenger, and understood its contents, whereas I find there how you complain that the truce was past some days before a prolongation was fixed for another following year, according as he will make relation to you. About this, and, moreover, about the coming of your ambassadors, who should come to join themselves with those whom the king my son should send, to see and determine upon the damage and mischief which those who are injured have received of their own goods, f send to you the said John de Samora, who will speak of some things that he will have to say to you from me, and of others which have been already confirmed in my name, which he will tell you. Wherefore, dearest and best-beloved brother and lord, I request you that it would please you to give faith and credence to the things that he will say to you on my part in this matter. Dearest and best-loved brother and lord, may the Holy Trinity ever have you in his holy keeping! Written in the city of Valladolid [Map], the 30th day of July. I THE Queen.
On 12th June 1415 Alfonso V King Aragon [aged 19] and Maria Trastámara Queen Consort Aragon [aged 13] were married. She by marriage Queen Consort Aragon. She the daughter of Henry III King Castile and Catherine of Lancaster Queen Consort Castile [aged 42]. He the son of Ferdinand I King Aragon [aged 34] and Eleanor of Alberquerque Queen Consort Aragon [aged 41]. They were first cousins. She a great granddaughter of King Edward III of England.
On 2nd April 1416 [her uncle] Ferdinand I King Aragon [aged 35] died. His son [her husband] Alfonso [aged 20] succeeded V King Aragon.
In 1418 [her brother] John II King Castile [aged 12] and [her sister-in-law] Maria Trastámara Queen Consort Castile [aged 22] were married. She by marriage Queen Consort Castile. She the daughter of [her uncle] Ferdinand I King Aragon and [her mother-in-law] Eleanor of Alberquerque Queen Consort Aragon [aged 44]. He the son of [her father] Henry III King Castile and Catherine of Lancaster Queen Consort Castile [aged 44]. They were first cousins. He a great grandson of King Edward III of England.
On 2nd June 1418 [her mother] Catherine of Lancaster Queen Consort Castile [aged 45] died at Valladolid [Map]. She was buried at Capilla de los Reyes Nuevos, Cathedral of Toledo.
Before 29th May 1421 [her brother-in-law] John II King Aragon [aged 22] and Blanche Évreux Queen Consort Aragon [aged 33] were married. She by marriage Queen Consort Aragon. She the daughter of Charles III King Navarre [aged 60] and Eleanor of Castile Queen Consort Navarre [aged 58]. He the son of [her uncle] Ferdinand I King Aragon and [her mother-in-law] 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.
After 1441 [her brother-in-law] John II King Aragon [aged 42] and 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 uncle] Ferdinand I King Aragon and [her mother-in-law] Eleanor of Alberquerque Queen Consort Aragon. They were second cousin once removed.
Westminster Chronicle of King Richard II, 1381-1394
The Westminster Chronicle is one of the most vivid and important narrative sources for the reign of Richard II. Written by an anonymous chronicler closely connected with Westminster Abbey, it covers the years 1381 to 1394, from the Peasants’ Revolt to the political tensions, court ceremonies, diplomatic negotiations, royal progresses, and public crises of Richard’s later reign. Rich in detail the chronicle records major events such as the conflicts between the King and Lords Appellant, King and the City of London, negotiations with France and Scotland, the death and funeral of Queen Anne of Bohemia, the illness of Charles VI of France, and the changing fortunes of leading nobles including John of Gaunt, Thomas of Gloucester, Robert de Vere, and the Earl of Arundel. The Chronicle offers readers a remarkable window into late fourteenth-century England, combining political observation, courtly spectacle, urban drama, ecclesiastical affairs, and moral judgement. It is an essential source for anyone interested in medieval monarchy, London, Westminster, and the troubled reign of Richard II.
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After 1445 [her brother] John II King Castile [aged 39] and [her sister-in-law] Isabella Aviz Queen Consort Castile [aged 17] were married. She by marriage Queen Consort Castile. The difference in their ages was 22 years. He the son of [her father] Henry III King Castile and [her mother] Catherine of Lancaster Queen Consort Castile. They were half first cousin once removed. He a great grandson of King Edward III of England. She a great x 2 granddaughter of King Edward III of England.
On 20th July 1454 [her brother] John II King Castile [aged 49] died. His son [her nephew] Henry [aged 29] succeeded IV King Castile. Blanche Trastámara II Queen Navarre [aged 30] by marriage Queen Consort Castile.
On 27th June 1458 [her husband] 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 brother-in-law] John [aged 59] succeeded II King Aragon.
On 7th September 1458 Maria Trastámara Queen Consort Aragon [aged 56] died.
Kings Wessex: Great x 11 Grand Daughter of King Edmund "Ironside" I of England
Kings Godwinson: Great x 11 Grand Daughter of King Harold II of England
Kings England: Great Grand Daughter of King Edward III of England
Kings Scotland: Great x 9 Grand Daughter of King Malcolm III of Scotland
Kings France: Great x 3 Grand Daughter of King Philip IV of France
Kings Duke Aquitaine: Great x 15 Grand Daughter of Ranulf I Duke Aquitaine
Kings Spain: Great x 7 Grand Daughter of Alfonso VII King Castile VII King Leon
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
Grandfather: John I King Castile 3 x Great Grandson 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
Father: Henry III King Castile 4 x Great Grandson of King Louis IX of France
Great x 4 Grandfather: Peter III King Aragon Great Grandson of Alfonso II King Aragon
Great x 3 Grandfather: James "The Just" II King Aragon 2 x Great Grandson 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 2 Grandfather: Alfonso IV King Aragon 2 x Great Grandson of King Louis VIII of France
Great x 4 Grandfather: Charles II King Naples Grandson of King Louis VIII of France
Great x 3 Grandmother: Blanche Capet Queen Consort Aragon Great Granddaughter of King Louis VIII of France
Great x 4 Grandmother: Mary of Hungary Queen Consort Naples 6 x Great Granddaughter of King Harold II of England
Great x 1 Grandfather: Peter IV King Aragon 3 x Great Grandson of King Louis VIII of France
Great x 2 Grandmother: Teresa Enteca Queen Consort Aragon
Grandmother: Eleanor Barcelona Queen Consort Castile 4 x Great Granddaughter of King Louis VIII of France
Great x 4 Grandfather: Peter III King Aragon Great Grandson of Alfonso II King Aragon
Great x 3 Grandfather: Frederick III King Sicily 2 x Great Grandson of Alfonso II King Aragon
Great x 2 Grandfather: Peter II King Sicily 2 x Great Grandson of King Louis VIII of France
Great x 4 Grandfather: Charles II King Naples Grandson of King Louis VIII of France
Great x 3 Grandmother: Eleanor Capet Great Granddaughter of King Louis VIII of France
Great x 4 Grandmother: Mary of Hungary Queen Consort Naples 6 x Great Granddaughter of King Harold II of England
Great x 1 Grandmother: Eleanor of Sicily Queen Consort Aragon 3 x Great Granddaughter of King Louis VIII of France
Maria Trastámara Queen Consort Aragon Great Granddaughter of King Edward III of England
Great x 4 Grandfather: King Henry III of England 
son of King John of England
Great x 3 Grandfather: King Edward I of England son of King Henry III of England
Great x 4 Grandmother: Eleanor of Provence Queen Consort England Great Granddaughter of Alfonso II King Aragon
Great x 2 Grandfather: King Edward II of England son of King Edward I of England
Great x 4 Grandfather: Ferdinand III King Castile III King Leon Great Grandson of Alfonso VII King Castile VII King Leon
Great x 3 Grandmother: Eleanor of Castile Queen Consort England 2 x Great Granddaughter of Alfonso VII King Castile VII King Leon
Great x 4 Grandmother: Joan Dammartin Queen Consort Castile and Leon 2 x Great Granddaughter of Alfonso VII King Castile VII King Leon
Great x 1 Grandfather: King Edward III of England son of King Edward II of England
Great x 4 Grandfather: King Philip III of France son of King Louis IX of France
Great x 3 Grandfather: King Philip IV of France son of King Philip III of France
Great x 4 Grandmother: Isabella Barcelona Queen Consort France Great Granddaughter of Alfonso II King Aragon
Great x 2 Grandmother: Isabella of France Queen Consort England daughter of King Philip IV of France
Great x 4 Grandfather: Henry I King Navarre 
2 x Great Grandson of Alfonso VII King Castile VII King Leon
Great x 3 Grandmother: Joan Blois I Queen Navarre Great Granddaughter of King Louis VIII of France
Great x 4 Grandmother: Blanche Capet Queen Navarre Granddaughter of King Louis VIII of France
Grandfather: John of Gaunt 1st Duke Lancaster son of King Edward III of England
Great x 4 Grandfather: John of Avesnes I Count Hainaut 4 x Great Grandson of King William "Conqueror" I of England
Great x 3 Grandfather: John of Avesnes II Count Hainaut II Count Holland 3 x Great Grandson of King Stephen I England
Great x 4 Grandmother: Adelaide Gerulfing Countess Hainaut 
2 x Great Granddaughter of King Stephen I England
Great x 2 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 Grandfather: Henry "Great" Luxembourg V Count Luxembourg III Count Namur 
8 x Great Grandson of King Edward "Elder" of the Anglo Saxons
Great x 3 Grandmother: Philippa Luxembourg Countess Hainaut and Holland 5 x Great Granddaughter of King William "Conqueror" I of England
Great x 4 Grandmother: Margaret of Bar Countess Luxembourg and Namur 4 x Great Granddaughter of King William "Conqueror" I of England
Great x 1 Grandmother: Philippa of Hainaut Queen Consort England Great Granddaughter of King Philip III of France
Great x 4 Grandfather: King Philip III of France son of King Louis IX of France
Great x 3 Grandfather: Charles Valois I Count Valois son of King Philip III of France
Great x 4 Grandmother: Isabella Barcelona Queen Consort France Great Granddaughter of Alfonso II King Aragon
Great x 2 Grandmother: Joan Valois Countess Zeeland Holland Avesnes and Hainaut Granddaughter of King Philip III of France
Great x 4 Grandfather: Charles II King Naples Grandson of King Louis VIII of France
Great x 3 Grandmother: Margaret Capet Countess Valois Great Granddaughter of King Louis VIII of France
Great x 4 Grandmother: Mary of Hungary Queen Consort Naples 6 x Great Granddaughter of King Harold II of England
Mother: Catherine of Lancaster Queen Consort Castile 
Granddaughter of King Edward III 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 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: Peter "Cruel" I King Castile 5 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 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 Grandmother: Maria Burgundy Queen Consort Castile 4 x Great Granddaughter 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
Grandmother: Constance of Castile Duchess of Lancaster 6 x Great Granddaughter of Alfonso II King Aragon
Great x 3 Grandfather: Garcia Padilla
Great x 2 Grandfather: Juan García Padilla 1st Lord Villagera
Great x 1 Grandmother: Maria Padilla
Great x 3 Grandfather: Fernán González Henestrosa
Great x 2 Grandmother: María González Henestrosa Lady Villagera