Paternal Family Tree: Capet
Maternal Family Tree: Mathilda of Tubingen
Around 3rd July 1361 John Montfort V Duke Brittany [aged 22] and Mary Plantagenet Duchess Brittany [aged 16] were married. She the daughter of King Edward III of England [aged 48] and Philippa of Hainaut Queen Consort England [aged 51]. They were third cousins. He a great x 2 grandson of King Henry III of England.
In May 1366 John Montfort V Duke Brittany [aged 27] and Joan Holland Duchess Brittany [aged 16] were married. She by marriage Duchess Brittany 1221 Dreux. She the daughter of Thomas Holland 1st Earl Kent and Joan "Fair Maid of Kent" Princess Wales [aged 37]. They were third cousins. He a great x 2 grandson of King Henry III of England. She a great granddaughter of King Edward I of England.
On 2nd October 1386 John Montfort V Duke Brittany [aged 47] and Joanna of Navarre Queen Consort England [aged 16] were married at Saillé [Map]. She by marriage Duchess Brittany 1221 Dreux, Countess Richmond. His third marriage, her first. The marriage proceeded when her father Charles "Bad" II King Navarre [aged 53] agreed to give his daughter 120,000 gold francs and to pay 6,000 francs owed to John, duke of Brittany, for the rent of certain lands. He, John, gave her the cities of Nantes [Map] and Guerrand [Map]. The difference in their ages was 31 years. She the daughter of Charles "Bad" II King Navarre and Joan Valois Queen Consort Navarre. They were second cousin twice removed. He a great x 2 grandson of King Henry III of England. She a great x 4 granddaughter of King Henry III of England.
In 1397 Blanche Montfort Countess Armagnac was born to John Montfort V Duke Brittany [aged 58] and Joanna of Navarre Queen Consort England [aged 27]. She a great x 3 granddaughter of King Henry III of England.
On 1st November 1399 John Montfort V Duke Brittany [aged 60] died. His son John [aged 9] succeeded V Duke Brittany 1221 Dreux. His son Arthur [aged 6] succeeded 7th Earl Richmond.
On 13th January 1403 Joanna of Navarre Queen Consort England [aged 33] with her two daughters Marguerite Montfort Viscountess Rohan [aged 11] and Blanche Montfort Countess Armagnac [aged 6] departed from Camaret to travel to England intending to land at Southampton. A storm caused them to land at Falmouth, Cornwall from where they travelled to Winchester.
On 7th February 1403 King Henry IV of England [aged 35] and Joanna of Navarre Queen Consort England [aged 33] were married at Winchester, Hampshire [Map]. His third marriage, her second. She had eight children with her first husband but, despite ten years of marriage, none with Henry. She the daughter of [her grandfather] Charles "Bad" II King Navarre and [her grandmother] Joan Valois Queen Consort Navarre. He the son of John of Gaunt 1st Duke Lancaster and Blanche Duchess of Lancaster. They were third cousins. He a grandson of King Edward III of England. She a great x 4 granddaughter of King Henry III of England.
On 26th February 1403 Joanna of Navarre Queen Consort England [aged 33] was crowned Queen Consort England at Westminster Abbey.
On 26th November 1405 Thomas Fitzalan 10th Earl of Surrey 5th or 12th Earl of Arundel [aged 24] and Beatrice Aviz Duchess Exeter [aged 23] were married. King Henry IV of England [aged 38] and Joanna of Navarre Queen Consort England [aged 35] were present at their wedding feast. She the illegitmate daughter of King John I of Portugal [aged 53] and Ines Peres. He the son of Richard Fitzalan 9th Earl of Surrey 4th or 11th Earl of Arundel and Elizabeth Bohun Countess Arundel and Surrey. They were half fourth cousin once removed. He a great x 2 grandson of King Edward I of England.
Annals of Kings Richard II and Henry IV. Meanwhile, while Parliament was still in session, the Breton members of the Queen’s1 household, together with her two daughters, were expelled from the kingdom by decree of Parliament.
Medio tempore, durante Parliamento, eliminati sunt Britones familiares Reginæ, eum duabus filiabus ejusdem, a regno, ex ipsius Parliamenti decreto.
Note 1. Queen Joan of Navarre [aged 36]. Her two unmarried daughters in 1406 were Marguerite [aged 14], who married in 1407, Alan [aged 24], IX Count of Rohan, and Blanche [aged 9], who married in 1407 John, IV Count of Armagnac [aged 9].
On 16th June 1407 John IV Count Armagnac [aged 10] and Blanche Montfort Countess Armagnac [aged 10] were married. She the daughter of John Montfort V Duke Brittany and Joanna of Navarre Queen Consort England [aged 37]. He the son of Bernard VII Count Armagnac [aged 44] and Bonne Valois Countess Armagnac and Savoy [aged 42]. They were second cousins. She a great x 3 granddaughter of King Henry III of England.
In 1410 Charles Valois Duke Orléans [aged 15] and [her sister-in-law] Bonne Armagnac Duchess Orléans [aged 10] were married. She by marriage Duchess Orléans. She the daughter of [her father-in-law] Bernard VII Count Armagnac [aged 47] and [her mother-in-law] Bonne Valois Countess Armagnac and Savoy [aged 45]. He the son of Louis Valois I Duke Orléans and Valentina Visconti Duchess of Orleans. They were second cousins. He a great x 5 grandson of King Henry III of England.
In 1414 [her brother-in-law] John Valois I Duke Alençon was created I Duke Alençon. [her sister] Marie Montfort Duchess Alençon [aged 22] by marriage Duchess Alençon.
In 1416 [her daughter] Bonne Armagnac was born to John IV Count Armagnac [aged 19] and Blanche Montfort Countess Armagnac [aged 19]. She a great x 4 granddaughter of King Henry III of England. Coefficient of inbreeding 2.34%.
On 12th June 1418 [her father-in-law] Bernard VII Count Armagnac [aged 55] died. His son John [aged 21] succeeded IV Count Armagnac. Blanche Montfort Countess Armagnac [aged 21] by marriage Countess Armagnac.
Before 1419 Blanche Montfort Countess Armagnac [aged 21] died.
On 10th May 1419 John IV Count Armagnac [aged 22] and Isabella Évreux Countess Armagnac [aged 24] were married. She by marriage Countess Armagnac. She the daughter of [her uncle] Charles III King Navarre [aged 58] and Eleanor of Castile Queen Consort Navarre [aged 56]. He the son of [her former father-in-law] Bernard VII Count Armagnac and [her former mother-in-law] Bonne Valois Countess Armagnac and Savoy [aged 54]. They were second cousins. She a great x 5 granddaughter of King Henry III of England.
On 5th November 1450 John IV Count Armagnac [aged 54] died. His son Jean [aged 30] succeeded V Count Armagnac.
Kings Wessex: Great x 10 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 x 3 Grand Daughter of King Henry III of England
Kings Scotland: Great x 8 Grand Daughter of King Malcolm III of Scotland
Kings France: Great Grand Daughter of King John "The Good" II of France
Kings Duke Aquitaine: Great x 14 Grand Daughter of Ranulf I Duke Aquitaine
Kings Spain: Great x 6 Grand Daughter of Alfonso II King Aragon
Great x 4 Grandfather: Peter of Dreux aka Mauclerc Duke Brittany 
5 x Great Grandson of Hugh I King of the Franks
Great x 3 Grandfather: John "The Red" Capet I Duke Brittany 3 x Great Grandson of King David I of Scotland
Great x 4 Grandmother: Alix Thouars Duchess of Brittany 2 x Great Granddaughter of King David I of Scotland
Great x 2 Grandfather: John II Duke Brittany 3 x Great Grandson of Alfonso VII King Castile VII King Leon
Great x 4 Grandfather: Theobald IV King Navarre 
Great Grandson of Alfonso VII King Castile VII King Leon
Great x 3 Grandmother: Blanche "Navarre" Blois Duchess Brittany 2 x Great Granddaughter of Alfonso VII King Castile VII King Leon
Great x 4 Grandmother: Agnes of Beaujeu Countess Savoy
Great x 1 Grandfather: Arthur II Duke Brittany Grandson of King Henry III of England
Great x 4 Grandfather: King John of England 
son of King Henry "Curtmantle" II of England
Great x 3 Grandfather: King Henry III of England son of King John of England
Great x 4 Grandmother: Isabella of Angoulême Queen Consort England 
5 x Great Granddaughter of Hugh I King of the Franks
Great x 2 Grandmother: Beatrice Plantagenet daughter of King Henry III of England
Great x 4 Grandfather: Raymond IV Count Provence 
Grandson of Alfonso II King Aragon
Great x 3 Grandmother: Eleanor of Provence Queen Consort England Great Granddaughter of Alfonso II King Aragon
Great x 4 Grandmother: Beatrice Savoy Countess Provence 13 x Great Granddaughter of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Grandfather: John Montfort IV Duke Brittany Great Grandson of King Henry III of England
Great x 4 Grandfather: Robert Capet III Count Dreux 5 x Great Grandson of Hugh I King of the Franks
Great x 3 Grandfather: John Capet I Count Dreux 6 x Great Grandson of Hugh I King of the Franks
Great x 4 Grandmother: Aénor de Saint-Valéry 7 x Great Granddaughter of Hugh I King of the Franks
Great x 2 Grandfather: Robert Capet IV Count Dreux 7 x Great Grandson of Hugh I King of the Franks
Great x 4 Grandfather: Archambaud "Great" Dampierre 
Great x 3 Grandmother: Marie Dampierre Countess Dreux
Great x 4 Grandmother: Beatrice Montluçon
Great x 1 Grandmother: Yolande of Dreux Queen of Scotland 5 x Great Granddaughter of King Henry I "Beauclerc" England
Great x 4 Grandfather: Amaury Montfort 2 x Great Grandson of King Henry I "Beauclerc" England
Great x 3 Grandfather: Jean Montfort 3 x Great Grandson of King Henry I "Beauclerc" England
Great x 4 Grandmother: Beatrix Viennois
Great x 2 Grandmother: Beatrice Montfort Countess Dreux 4 x Great Granddaughter of King Henry I "Beauclerc" England
Great x 4 Grandfather: Geoffrey Chateaudun VI Viscount Châteaudun
Great x 3 Grandmother: Jeanne Chateaudun
Great x 4 Grandmother: Clemence Roches Countess Blois
Father: John Montfort V Duke Brittany 2 x Great Grandson of King Henry III of England
Great x 4 Grandfather: William Dampierre II Count Flanders
Great x 3 Grandfather: Guy Dampierre Count Flanders 4 x Great Grandson of King William "Conqueror" I of England
Great x 4 Grandmother: Margaret II Countess Flanders 3 x Great Granddaughter of King William "Conqueror" I of England
Great x 2 Grandfather: Robert Dampierre III Count Flanders 5 x Great Grandson of King William "Conqueror" I of England
Great x 4 Grandfather: Robert VII Lord Bethune
Great x 3 Grandmother: Mathilde Bethune
Great x 1 Grandfather: Louis Dampierre I Count Nevers 6 x Great Grandson of King William "Conqueror" I of England
Great x 4 Grandfather: Hugh IV Duke Burgundy 4 x Great Grandson of King William "Conqueror" I of England
Great x 3 Grandfather: Odo Burgundy 5 x Great Grandson of King William "Conqueror" I of England
Great x 4 Grandmother: Yolande Capet Duchess Burgundy 6 x Great Granddaughter of Hugh I King of the Franks
Great x 2 Grandmother: Yolande Burgundy II Countess Nevers and Flanders 6 x Great Granddaughter of King William "Conqueror" I of England
Great x 4 Grandfather: Archambaud "Young" Dampierre
Great x 3 Grandmother: Matilda Countess of Auxerre
Great x 4 Grandmother: Yolande Chatillon
Grandmother: Joanna of Flanders Duchess Brittany 7 x Great Granddaughter of King William "Conqueror" I of England
Great x 4 Grandfather: Hugh Rethel II Count Rethel 8 x Great Grandson of King Edward "Elder" of the Anglo Saxons
Great x 3 Grandfather: Manasses V Count Rethel 9 x Great Grandson of King Edward "Elder" of the Anglo Saxons
Great x 2 Grandfather: Hugh IV Count Rethel 10 x Great Grandson of King Edward "Elder" of the Anglo Saxons
Great x 1 Grandmother: Joan Rethel Countess Nevers and Rethel 11 x Great Granddaughter of King Edward "Elder" of the Anglo Saxons
Blanche Montfort Countess Armagnac Great Granddaughter of King John "The Good" II of France
Great x 4 Grandfather: King Louis IX of France son of King Louis VIII of France
Great x 3 Grandfather: King Philip III of France son of King Louis IX of France
Great x 4 Grandmother: Margaret Provence Queen Consort France Great Granddaughter of Alfonso II King Aragon
Great x 2 Grandfather: Louis I Count Évreux son of King Philip III of France
Great x 4 Grandfather: Henry Reginar III Duke Brabant 2 x Great Grandson of King Stephen I England
Great x 3 Grandmother: Maria of Brabant Queen Consort France 3 x Great Granddaughter of King Stephen I England
Great x 4 Grandmother: Adelaide Burgundy Duchess Brabant 5 x Great Granddaughter of King William "Conqueror" I of England
Great x 1 Grandfather: Philip "Noble" III King Navarre Grandson of King Philip III of France
Great x 4 Grandfather: Robert Artois II Count Artois Grandson of King Louis VIII of France
Great x 3 Grandfather: Philip Artois Great Grandson of King Louis VIII of France
Great x 4 Grandmother: Amice Countenay Countess Artois 4 x Great Granddaughter of King Henry I "Beauclerc" England
Great x 2 Grandmother: Margaret Artois Countess Évreux Great Granddaughter of King Henry III of England
Great x 4 Grandfather: John II Duke Brittany 3 x Great Grandson of Alfonso VII King Castile VII King Leon
Great x 3 Grandmother: Blanche Capet Granddaughter of King Henry III of England
Great x 4 Grandmother: Beatrice Plantagenet daughter of King Henry III of England
Grandfather: Charles "Bad" II King Navarre Grandson of Louis X King France I Navarre
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 Grandfather: Louis X King France I Navarre son 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
Great x 1 Grandmother: Joan Capet II Queen Navarre daughter of Louis X King France I Navarre
Great x 4 Grandfather: Hugh IV Duke Burgundy 4 x Great Grandson of King William "Conqueror" I of England
Great x 3 Grandfather: Robert II Duke Burgundy 5 x Great Grandson of King William "Conqueror" I of England
Great x 4 Grandmother: Yolande Capet Duchess Burgundy 6 x Great Granddaughter of Hugh I King of the Franks
Great x 2 Grandmother: Margaret of Burgundy Queen Consort France Granddaughter of King Louis IX of France
Great x 4 Grandfather: King Louis IX of France son of King Louis VIII of France
Great x 3 Grandmother: Agnes Capet Duchess Burgundy daughter of King Louis IX of France
Great x 4 Grandmother: Margaret Provence Queen Consort France Great Granddaughter of Alfonso II King Aragon
Mother: Joanna of Navarre Queen Consort England Granddaughter of King John "The Good" II 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 Grandfather: King Philip "Fortunate" VI of France Grandson 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
Great x 1 Grandfather: King John "The Good" II of France son of King Philip "Fortunate" VI of France
Great x 4 Grandfather: Hugh IV Duke Burgundy 4 x Great Grandson of King William "Conqueror" I of England
Great x 3 Grandfather: Robert II Duke Burgundy 5 x Great Grandson of King William "Conqueror" I of England
Great x 4 Grandmother: Yolande Capet Duchess Burgundy 6 x Great Granddaughter of Hugh I King of the Franks
Great x 2 Grandmother: Joan "Lame" Burgundy Queen Consort France Granddaughter of King Louis IX of France
Great x 4 Grandfather: King Louis IX of France son of King Louis VIII of France
Great x 3 Grandmother: Agnes Capet Duchess Burgundy daughter of King Louis IX of France
Great x 4 Grandmother: Margaret Provence Queen Consort France Great Granddaughter of Alfonso II King Aragon
Grandmother: Joan Valois Queen Consort Navarre daughter of King John "The Good" II of France
Great x 4 Grandfather: Henry Luxembourg VI Count Luxembourg 
5 x Great Grandson of King William "Conqueror" I of England
Great x 3 Grandfather: Henry Luxembourg VII Holy Roman Emperor 5 x Great Grandson of King William "Conqueror" I of England
Great x 4 Grandmother: Beatrice Avesnes Countess Luxembourg 4 x Great Granddaughter of King William "Conqueror" I of England
Great x 2 Grandfather: King John I of Bohemia 6 x Great Grandson of King William "Conqueror" I of England
Great x 4 Grandfather: John I Brabant
Great x 3 Grandmother: Margaret Brabant Countess Luxembourg and Namur
Great x 1 Grandmother: Bonne Luxembourg Queen Consort France 7 x Great Granddaughter of King William "Conqueror" I of England
Great x 4 Grandfather: Ottokar "Iron King" II King Bohemia 5 x Great Grandson of King Harold II of England
Great x 3 Grandfather: King Wenceslaus II of Bohemia and Poland 6 x Great Grandson of King Harold II of England
Great x 4 Grandmother: Kunigunda Rostislavna Přemyslovna
Great x 2 Grandmother: Queen Elizabeth of Bohemia 7 x Great Granddaughter of King Harold II of England
Great x 4 Grandfather: Rudolph I King Romans 11 x Great Grandson of King Alfred "The Great" of Wessex
Great x 3 Grandmother: Queen Judith of Bohemia and Poland 12 x Great Granddaughter of King Alfred "The Great" of Wessex
Great x 4 Grandmother: Gertrude Hohenburg