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Birth:          ABT 1227 Acre, Palestine
Death:          AFT 1252 

Notes
https://en.wikipedia.org/wiki/Jeanne,_Dame_de_Chateaudun
Jeanne, Dame de Chateaudun (c. 1227 – after 1252) was a French heiress and the 
wife of two French noblemen Jean I de Montfort, and Jean de Brienne, Grand Butler of 
France.
Family[edit]

Jeanne was born in France in about the year 1227, the eldest daughter and co-heiress 
of Geoffrey VI, Viscount de Chateaudun (d. 6 February 1250 on Crusade), and his wife 
Clémence des Roches (died after September 1259). Her father also held the titles of 
seigneur of Chateaudun, Chateau-du-Loir, Mayet, Loupeland, Montdoubleau, and la 
Suze.[1] In 1229, he participated in the Crusade against the Albigenses in the 
Languedoc.

Her paternal grandparents were Geoffrey V, Viscount de Chateaudun and Alix de 
Freteval, and her maternal grandparents were William des Roches, Seneschal of 
Anjou, and Marguerite de Sablé, daughter of Robert de Sablé and Clémence de 
Mayenne. Jeanne had a younger sister Clémence de Chateaudun (after 1227- before 1 
February 1259), who married Robert de Dreux, Viscount de Chateaudun (1217–1264). 
She had a brother Pierre de Chateaudun (died after 1251), who was a monk.[2]

Marriages and issue[edit]

In March 1248 Jeanne married her first husband Jean I de Montfort, son of Amaury VI, 
count of Montfort and Beatrice of Burgundy, by whom she had one daughter:
Beatrice de Montfort, Countess of Montfort-l'Amaury (c. December 1248/1249- 9 
March 1312), in 1260 married Robert IV of Dreux, Count of Dreux (1241–1282), they 
were the parents of six children, including John II, Count of Dreux and Yolande de 
Dreux, Queen consort of Alexander III of Scotland.

In the year 1249, de Montfort died in Cyprus, while participating in the Seventh 
Crusade. Jeanne married her second husband Jean de Brienne (1230–1296), Grand 
Butler of France, in 1251. She was his first wife. De Brienne was the son of John of 
Brienne, King of Jerusalem, Emperor of Constantinople, and his third wife Berenguela 
of Leon. A daughter was born to Jean de Brienne and Jeanne:
Blanche de Brienne, Baroness Tingry (c. 1252- c.1302). In 1269, married William II de 
Fiennes, Baron of Tingry. They had at least three children, including Margaret de 
Fiennes, mother of Roger Mortimer, 1st Earl of March

Legacy[edit]

Jeanne died on an unknown date. There is a source which claims that she attained 
the title of Dame de Chateau-du-Loir in 1265.[2] The title of Loupeland she passed on 
to her daughter Blanche.[3]

Notable descendants of Jeanne de Chateaudun include Anne of Brittany, Joan of 
Kent, Anne Mortimer (mother of Richard of York), Elizabeth Woodville, and King Henry 
VII making her the ancestress of all monarchs of England from Edward IV onward. 
Through another descendant, Joan Beaufort who married James I of Scotland, she is 
the ancestor of all monarchs of Scotland from James II of Scotland onward.

Her husband Jean de Brienne subsequently married Marie de Coucy (c.1218- 1285), 
widow of King Alexander II of Scotland, but had no children by her.

Parents
DE CHATEAUDUN Geoffrey VI (ABT 1190 - 6 Feb 1250)
DES ROCHES Clemence (ABT 1205 - AFT Sep 1259)

Siblings
DE CHATEAUDUN Jeanne (ABT 1227 - AFT 1252)

Marriage To DE BRIENNE Jean (ABT 1230 - 1296)
    m.  

Notes

Parents
DE BRIENNE Jean (ABT 1170 - 21 Mar 1237)
ALFONSEZ Bernegaria (Berenguela) (1204 - 12 Apr 1237)

Children by DE BRIENNE Jean ABT 1230 - 1296
DE BRIENNE Blanche (ABT 1252 - 1302)

Produced by Fzip 1.7 6/20/2017