Biography of Francis Montfort II Duke Brittany 1433-1488
Paternal Family Tree: Capet
Maternal Family Tree: Mathilda of Tubingen
In 1423 [his father] Richard Montfort (age 28) and [his mother] Margaret Valois (age 16) were married. She the daughter of Louis Valois Duke Touraine I Duke Orléans and Valentina Visconti. He the son of John Montfort V Duke Brittany and Joanna of Navarre Queen Consort England (age 53). They were second cousins. He a great x 3 grandson of King Henry III of England. She a great x 5 granddaughter of King Henry III of England. 
On 23 Jun 1433 Francis Montfort II Duke Brittany was born to Richard Montfort (age 38) and Margaret Valois (age 26). Coefficient of inbreeding 4.62%.
On 02 Jun 1438 [his father] Richard Montfort (age 43) died.
On 26 Dec 1458 Francis Montfort II Duke Brittany (age 25) succeeded II Duke Brittany 1364 War of Montfort.
Before 29 Jun 1463 Francis Montfort II Duke Brittany (age 30) and Margaret Montfort Duchess Brittany (age 20) were married. She by marriage Duchess Brittany 1364 War of Montfort. She the daughter of Francis Montfort I Duke Brittany and Isabella Stewart Duchess Brittany (age 37). They were first cousin once removed. He a great x 4 grandson of King Henry III of England. She a great x 3 granddaughter of King Edward III of England. 
On 29 Jun 1463 [his son] John Montfort was born to Francis Montfort II Duke Brittany (age 30) and [his wife] Margaret Montfort Duchess Brittany (age 20). Coefficient of inbreeding 5.61%.
On 25 Aug 1463 [his son] John Montfort died.
On 24 Apr 1466 [his mother] Margaret Valois (age 59) died.
In 1469 [his wife] Margaret Montfort Duchess Brittany (age 26) died.
On 27 Jun 1474 Francis Montfort II Duke Brittany (age 41) and Marguerite Foix Duchess Brittany (age 25) were married. She by marriage Duchess Brittany 1364 War of Montfort. She the daughter of Gaston IV Count Foix and Eleanor Trastámara Queen Consort Navarre (age 48). They were second cousin once removed. He a great x 4 grandson of King Henry III of England. 
In 1475 Bishop Oliver King (age 43) was sent as Ambassdor to Francis Montfort II Duke Brittany (age 41).
Around 1476 [his sister-in-law] Jeanne Foix (age 22) died.
On 25 Jan 1477 (possibly 26th) [his daughter] Anne of Brittany Queen Consort France was born to Francis Montfort II Duke Brittany (age 43) and [his wife] Marguerite Foix Duchess Brittany (age 28).
In 1478 [his daughter] Isabeau Montfort was born to Francis Montfort II Duke Brittany (age 44) and [his wife] Marguerite Foix Duchess Brittany (age 29).
On 19 Aug 1479 Jean V Count Armagnac and [his sister-in-law] Jeanne Foix were married. The difference in their ages was 34 years. She the daughter of Gaston IV Count Foix and Eleanor Trastámara Queen Consort Navarre. He the son of John IV Count Armagnac and Isabella Évreux Countess Armagnac. They were first cousin once removed.
Before 1484 Gaston de Foix 2nd Earl Kendal (age 36) and [his sister-in-law] Catherine of Foix Countess Kendal (age 28) were married. She the daughter of Gaston IV Count Foix and Eleanor Trastámara Queen Consort Navarre. He the son of John Foix 1st Earl Kendal (age 73) and Margaret Kerdeston Countess Foix (age 58). They were second cousins.
On 15 May 1486 [his wife] Marguerite Foix Duchess Brittany (age 37) died.
On 09 Sep 1488 Francis Montfort II Duke Brittany (age 55) died. His daughter [his daughter] Anne of Brittany Queen Consort France (age 11) succeeded Duchess Brittany 1364 War of Montfort.
Kings Wessex: Great x 11 Grand Son of King Edmund "Ironside" I of England
Kings England: Great x 4 Grand Son of King Henry III of England
Kings Scotland: Great x 9 Grand Son of Malcolm III King Scotland
Kings Franks: Great x 8 Grand Son of Louis VII King Franks
Kings France: Great x 3 Grand Son of Louis X King France I Navarre
Great x 4 Grandfather: John "The Red" Capet I Duke Brittany 4 x Great Grand Son of King Henry I "Beauclerc" England
Great x 3 Grandfather: John Capet II Duke Brittany 5 x Great Grand Son of King William "Conqueror" I of England
Great x 4 Grandmother: Blanche "Navarre" Blois Duchess Brittany
4 x Great Grand Daughter of King William "Conqueror" I of England
Great x 2 Grandfather: Arthur Capet Duke Brittany Grand Son of King Henry III of England
Great x 4 Grandfather: King Henry III of England
Son of King John "Lackland" of England
Great x 3 Grandmother: Beatrice Plantagenet Daughter of King Henry III of England
Great x 4 Grandmother: Eleanor of Provence Queen Consort England
Great x 1 Grandfather: John Montfort IV Duke Brittany Great Grand Son of King Henry III of England
Great x 4 Grandfather: John Capet I Count Dreux
Great x 3 Grandfather: Robert Capet IV Count Dreux
Great x 4 Grandmother: Marie Dampierre Countess Dreux
Great x 2 Grandmother: Yolande Capet Duchess Brittany 5 x Great Grand Daughter of King Henry I "Beauclerc" England
Great x 4 Grandfather: Jean Montfort 3 x Great Grand Son of King Henry I "Beauclerc" England
Great x 3 Grandmother: Beatrice Montfort Countess Dreux 4 x Great Grand Daughter of King Henry I "Beauclerc" England
Great x 4 Grandmother: Jeanne Chateaudun
GrandFather: John Montfort V Duke Brittany 2 x Great Grand Son of King Henry III of England
Great x 4 Grandfather: Guy Dampierre Count Flanders 4 x Great Grand Son of King William "Conqueror" I of England
Great x 3 Grandfather: Robert Dampierre III Count Flanders 5 x Great Grand Son of King William "Conqueror" I of England
Great x 4 Grandmother: Mathilde Bethune
Great x 2 Grandfather: Louis Dampierre I Count Nevers 6 x Great Grand Son of King William "Conqueror" I of England
Great x 4 Grandfather: Odo Burgundy 5 x Great Grand Son of King William "Conqueror" I of England
Great x 3 Grandmother: Yolande Burgundy II Countess Nevers and Flanders 6 x Great Grand Daughter of King William "Conqueror" I of England
Great x 4 Grandmother: Matilda Dampierre
Great x 1 Grandmother: Joanna Dampierre Duchess Brittany 7 x Great Grand Daughter of King William "Conqueror" I of England
Great x 4 Grandfather: Manasses V Count Rethel
Great x 3 Grandfather: Hugh IV Count Rethel
Great x 2 Grandmother: Joan Rethel Countess Nevers and Rethel
Father: Richard Montfort 3 x Great Grand Son of King Henry III of England
Great x 4 Grandfather: Philip "Bold" III King France 2 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 3 Grandfather: Louis I Count Évreux 3 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Maria Reginar Queen Consort France 5 x Great Grand Daughter of King William "Conqueror" I of England
Great x 2 Grandfather: Philip "Noble" III King Navarre 2 x Great Grand Son of King Henry III of England
Great x 4 Grandfather: Philip Artois 3 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 3 Grandmother: Margaret Artois Countess Évreux Great Grand Daughter of King Henry III of England
Great x 4 Grandmother: Blanche Capet Grand Daughter of King Henry III of England
Great x 1 Grandfather: Charles "Bad" II King Navarre 3 x Great Grand Son of King Henry III of England
Great x 4 Grandfather: Philip "The Fair" IV King France 3 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 3 Grandfather: Louis X King France I Navarre 4 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Joan Blois I Queen Navarre 3 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 2 Grandmother: Joan Capet II Queen Navarre 4 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 4 Grandfather: Robert II Duke Burgundy 5 x Great Grand Son of King William "Conqueror" I of England
Great x 3 Grandmother: Margaret of Burgundy Queen Consort France 3 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Agnes Capet Duchess Burgundy 2 x Great Grand Daughter of King Henry "Curtmantle" II of England
GrandMother: Joanna of Navarre Queen Consort England 4 x Great Grand Daughter of King Henry III of England
Great x 4 Grandfather: Charles Valois I Count Valois 3 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 3 Grandfather: King Philip "Fortunate" VI of France 4 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Margaret Capet Countess Valois 3 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 2 Grandfather: King John "The Good" II of France 4 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandfather: Robert II Duke Burgundy 5 x Great Grand Son of King William "Conqueror" I of England
Great x 3 Grandmother: Joan "Lame" Burgundy Queen Consort France 3 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Agnes Capet Duchess Burgundy 2 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 1 Grandmother: Joan Valois Queen Consort Navarre 5 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 4 Grandfather: Henry Luxemburg VII Holy Roman Emperor
5 x Great Grand Son of King William "Conqueror" I of England
Great x 3 Grandfather: King John I of Bohemia 6 x Great Grand Son of King William "Conqueror" I of England
Great x 4 Grandmother: Margaret Brabant Countess Luxemburg and Namur
Great x 2 Grandmother: Bonne Luxemburg Queen Consort France 7 x Great Grand Daughter of King William "Conqueror" I of England
Great x 4 Grandfather: King Wenceslaus II of Bohemia and Poland
Great x 3 Grandmother: Queen Elizabeth of Bohemia
Great x 4 Grandmother: Queen Judith of Bohemia and Poland
Francis Montfort II Duke Brittany 4 x Great Grand Son of King Henry III of England
Great x 4 Grandfather: Charles Valois I Count Valois 3 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 3 Grandfather: King Philip "Fortunate" VI of France 4 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Margaret Capet Countess Valois 3 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 2 Grandfather: King John "The Good" II of France 4 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandfather: Robert II Duke Burgundy 5 x Great Grand Son of King William "Conqueror" I of England
Great x 3 Grandmother: Joan "Lame" Burgundy Queen Consort France 3 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Agnes Capet Duchess Burgundy 2 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 1 Grandfather: King Charles V of France 5 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandfather: Henry Luxemburg VII Holy Roman Emperor 5 x Great Grand Son of King William "Conqueror" I of England
Great x 3 Grandfather: King John I of Bohemia 6 x Great Grand Son of King William "Conqueror" I of England
Great x 4 Grandmother: Margaret Brabant Countess Luxemburg and Namur
Great x 2 Grandmother: Bonne Luxemburg Queen Consort France 7 x Great Grand Daughter of King William "Conqueror" I of England
Great x 4 Grandfather: King Wenceslaus II of Bohemia and Poland
Great x 3 Grandmother: Queen Elizabeth of Bohemia
Great x 4 Grandmother: Queen Judith of Bohemia and Poland
GrandFather: Louis Valois Duke Touraine I Duke Orléans 4 x Great Grand Son of King Henry III of England
Great x 4 Grandfather: Robert Bourbon 1st Count Clermont 2 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 3 Grandfather: Louis Bourbon I Duke Bourbon 3 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Beatrice Burgundy 6 x Great Grand Daughter of King William "Conqueror" I of England
Great x 2 Grandfather: Peter Bourbon Duke Bourbon 4 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandfather: John Hainault II Count Hainault II Count Holland 5 x Great Grand Son of King William "Conqueror" I of England
Great x 3 Grandmother: Mary Hainault Duchess Bourbon 6 x Great Grand Daughter of King William "Conqueror" I of England
Great x 4 Grandmother: Philippa Luxemburg Countess Hainault and Holland 5 x Great Grand Daughter of King William "Conqueror" I of England
Great x 1 Grandmother: Joanna Bourbon Queen Consort France 3 x Great Grand Daughter of King Henry III of England
Great x 4 Grandfather: Philip "Bold" III King France 2 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 3 Grandfather: Charles Valois I Count Valois 3 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Isabella Barcelona Queen Consort France
Great x 2 Grandmother: Isabella Valois Duchess Bourbon 2 x Great Grand Daughter of King Henry III of England
Great x 4 Grandfather: Guy Chatillon IV Count Saint Pol 5 x Great Grand Son of King William "Conqueror" I of England
Great x 3 Grandmother: Mahaut Chatillon Countess Valois Great Grand Daughter of King Henry III of England
Great x 4 Grandmother: Marie Capet Grand Daughter of King Henry III of England
Mother: Margaret Valois 5 x Great Grand Daughter of King Henry III of England
Great x 4 Grandfather: Matteo I Visconti
Great x 3 Grandfather: Stephano Visconti
Great x 4 Grandmother: Bonacossa Borri
Great x 2 Grandfather: Galeazzo II Visconti
Great x 3 Grandmother: Valentina Doria
Great x 1 Grandfather: Gian Galeazzo Visconti 1st Duke Milan
Great x 4 Grandfather: Amadeus V "Great" Savoy
Great x 3 Grandfather: Aymon "Peaceful" Savoy Count Savoy
Great x 4 Grandmother: Sybille Bagé
Great x 2 Grandmother: Bianca Savoy
Great x 3 Grandmother: Yolande Palaeologina Countess Savoy
GrandMother: Valentina Visconti 6 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 4 Grandfather: Charles Valois I Count Valois 3 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 3 Grandfather: King Philip "Fortunate" VI of France 4 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Margaret Capet Countess Valois 3 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 2 Grandfather: King John "The Good" II of France 4 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandfather: Robert II Duke Burgundy 5 x Great Grand Son of King William "Conqueror" I of England
Great x 3 Grandmother: Joan "Lame" Burgundy Queen Consort France 3 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Agnes Capet Duchess Burgundy 2 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 1 Grandmother: Isabelle Valois 5 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 4 Grandfather: Henry Luxemburg VII Holy Roman Emperor 5 x Great Grand Son of King William "Conqueror" I of England
Great x 3 Grandfather: King John I of Bohemia 6 x Great Grand Son of King William "Conqueror" I of England
Great x 4 Grandmother: Margaret Brabant Countess Luxemburg and Namur
Great x 2 Grandmother: Bonne Luxemburg Queen Consort France 7 x Great Grand Daughter of King William "Conqueror" I of England
Great x 4 Grandfather: King Wenceslaus II of Bohemia and Poland
Great x 3 Grandmother: Queen Elizabeth of Bohemia
Great x 4 Grandmother: Queen Judith of Bohemia and Poland