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Birth:          1079 of Isle Bouchard, France
Death:          1151 

Notes
https://en.wikipedia.org/wiki/Dangereuse_de_l%27Isle_Bouchard
Dangereuse de l'Isle Bouchard (Poitevin: Dangerosa; 1079-1151) was the daughter of 
Bartholomew de l'Isle Bouchard. She was the maternal grandmother of the celebrated 
Eleanor of Aquitaine. She was also mistress to her granddaughters' paternal 
grandfather William IX, Duke of Aquitaine.[1] As the mistress of William the 
Troubadour, she was known as La Maubergeonne for the tower he built for her at his 
castle in Poitiers. Dangereuse was a sobriquet she received for her seductiveness; 
her baptismal name may have been Amauberge.
Family[edit]

Dangereuse's paternal grandparents were Archimbaud Borel de Bueil and Agnes de 
l'Isle Bouchard. Through her granddaughter, Dangereuse was an ancestor of many 
monarchs and members of the nobility, including: Richard I of England, Marie, 
Countess of Champagne, John of England, Geoffrey, Duke of Brittany, Joan, Queen of 
Sicily, Eleanor, Queen of Castile, Matilda, Duchess of Saxony and Henry the Young 
King.

Her granddaughter Eleanor was Queen consort of France, Queen consort of England 
and Duchess of Aquitaine (in her own right).

Life[edit]

Marriage[edit]

Dangereuse married Viscount Aimery I of Châtellerault at an unknown date. She 
advised her husband to donate property to the priory of Saint Denis en Vaux in a 
charter dated 1109, which means they were married before this point.[2] Dangereuse 
was a woman who did as she pleased and cared little for the opinion of her peers.[3]

Their marriage produced five children (two sons and three daughters):
Hugh (died before 1176) succeeded his father as Viscount
Raoul (died 1190) married Elisabeth, dame de Faye-la-Vineuse and had issue; he 
became grand seneschal of Aquitaine.
Aenor/Eleanor (c. 1103 – March 1130) married William X, Duke of Aquitaine, mother to 
Duchess Eleanor and Petronilla
Amable, married Wulgrin II, Count of Angoulême
Aois (fate unknown)

Dangereuse and Aimery were married for around seven years before she left her 
husband to become the mistress to Duke William IX; this became an infamous liaison.
[4]

Mistress to William IX[edit]

Whilst travelling through Poitou, Duke William IX of Aquitaine met the "seductive" 
Dangereuse.[5] This led to her leaving her husband for Duke William, who was 
excommunicated by the church for "abducting her"; however, she appeared to have 
been a willing party in the matter. He installed her in the Maubergeonne tower of his 
castle in Poitiers, and, as related by William of Malmesbury, even painted a picture of 
her on his shield.[6][7]

Upon returning to Poitiers from Toulouse, William's wife Philippa of Toulouse was 
enraged to discover a rival woman living in her palace. She appealed to her friends at 
the court of Aquitaine and to the Church;[8] however, no noble could assist her since 
William was their feudal overlord, and when the Papal legate Giraud complained to 
William and told him to return Dangereuse to her husband, William's only response to 
the bald legate was, "Curls will grow on your pate before I part with the Viscountess." 
Humiliated, in 1116, Philippa chose to retire to the Abbey of Fontevrault.

Dangereuse and William had three children:
Henri (died after 1132), a monk and later Prior of Cluny.
Adelaide
Sybille, Abbess of Saintes

Some[9] believe that Raymond of Poitiers, was a child of William by Dangereuse, 
rather than by Philippa of Toulouse. A primary source which names his mother has not 
so far been identified. However, he is not named in other sources as a legitimate son 
of Willam IX. It is therefore reasonable to suppose that he was born from the duke's 
relationship with Dangereuse. If this is the case, Dangereuse was grandmother to 
Bohemund III of Antioch, Maria of Antioch and Philippa of Antioch.

Philippa died two years later and William's first wife Ermengarde set out to avenge 
Philippa. In October 1119, she suddenly appeared at the Council of Reims being held 
by Pope Calixtus II and demanded that the Pope excommunicate William (again), oust 
Dangereuse from the ducal palace, and restore herself to her rightful place as 
Duchess Consort. The Pope "declined to accommodate her"; however, she continued 
to trouble William for several years afterwards.

The relationship between William and his legitimate son William was troubled by his 
father's liaison with Dangereuse. This was only settled when the pair arranged the 
marriage between William the Younger and Dangereuse's daughter Aenor in 1121;[10] 
the following year Eleanor was born.

William died on 10 February 1127; nothing is recorded of Dangereuse after this point. 
She died in 1151.

Parents
DE L'ISLE BOUCHARD Barthelemy (1049 - )
____ Gerberge (1053 - )

Siblings
DE L'ISLE BOUCHARD Dangereuse ("Maubergeonne") (1079 - 1151)

Marriage To ____ Aimery (Aimeri) (Amauri) (Amalric) I (ABT 1076 - 7 Nov 1151)
    m.  his 2d

Notes

Parents
____ Boso (Boson) II (ABT 1050 - )
DE THOUARS Eleanor (Alienor) (Aenor) (ABT 1054 - )

Children by ____ Aimery (Aimeri) (Amauri) (Amalric) I ABT 1076 - 7 Nov 1151
DE CHATELLERAULT Aenor (Eleanor) (ABT 1103 - AFT 1133)
DE CHATELLERAULT Raoul (ABT 1110 - ABT 1190)

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