- Beatrice de Montfort, Countess of Montfort-l'Amaury
Beatrice de Montfort, Countess of Montfort-l'Amaury (c. December 1248/1249- 9 March 1312) was the wife of
Robert IV of Dreux Count of Dreux (1241- 12 November 1282), and the ancestress of theDukes of Brittany .Family
Beatrice was born sometime between December 1248 and 1249, the only child of
Jean I de Montfort , Count of Dreux andJeanne, Dame de Chateaudun . Her paternal grandparents were Amaury VI, Count of Montfort and Beatrice of Burgundy. Her maternal grandparents were Geoffrey VI, Viscount de Chateaudun and Clemence des Roches. Her great- grandfatherSimon de Montfort, 5th Earl of Leicester was a prominent leader of theAlbigensian Crusade .In 1249, Beatrice's father died in
Cyprus , while participating in theSeventh Crusade , leaving her mother a widow. In 1251, Jeanne married secondly Jean de Brienne, GrandButler of France, by whom she had a daughterBlanche de Brienne, Baroness Tingry (1252- 1302) who married William II de Fiennes, Baron of Tingry. [Plantagenet Ancestry: A Study in Colonial and Medieval Families, p.155]Jeanne died sometime after 1252, leaving her two daughters as her co-heiresses.
Marriage
Beatrice was married to Robert IV of Dreux, Count of Dreux, Braine and Montfort- l'Amaury in 1260, when she was about 11 years old. He was the son of
John I of Dreux , Count of Dreux and Braine, and Marie de Bourbon. The marriage produced six children. Robert inherited the titles of Dreux and Braine following the death of his father in 1249, and after his marriage succeeded to the title of de Montfort by right of his wife.List of children
# Marie of Dreux (1261/62- 1276), in 1275 married Mathieu de Montmorency.
#Yolande de Dreux (1263- 1323), married firstly on 15 October 1285 KingAlexander III of Scotland, and secondly in 1292Arthur II ,Duke of Brittany . By her second husband she was the mother of seven children.
#John II of Dreux (1265- 1309), Count of Dreux and Braine. Fought at theBattle of the Golden Spurs . He married firstly Jeanne de Beaujeu, Dame de Montpensier (died 1308), by whom he had four sons and one daughter. In 1308, he married secondly Perrenelle de Sully, by whom he had a daughter Jeanne II, Countess of Dreux (1309- c.1355).
# Jeanne of Dreux, Countess of Braine, married firstly Jean IV de Roucy, and secondly John ofBar .
# Beatrice of Dreux, Abbess of Pont-Royal (1270- 1328)
# Robert of Dreux, seigneur of Chateau-du-Loire.Death
Beatrice died on 9 March 1312 at the age of 63. She was buried in the Abbaye de Haute- Bruyère. [ Charles Cawley "Medieval Lands"] Duke
John V of Brittany and French Queen consortAnne of Brittany were included amongst her notable descendants.References
#Douglas Richardson, Kimball G. Everingham, and David Faris, Plantagenet Ancestry: A Study in Colonial and Medieval Families, Royal Ancestry series, p. 155, Genealogical Publishing Co., Baltimore, Md., 2004
# Charles Cawley Medieval Lands
Wikimedia Foundation. 2010.