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 John II of Brienne, Grand Butler of France.

Jeanne was born in France in about the year 1227, the eldest daughter and co-heiress of Geoffrey VI, Viscount of Châteaudun, 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.

Jeanne married her second husband John II of Brienne (1230–1296), Grand Butler of France, in 1251.

There is a source which claims that she attained the title of Dame de Chateau-du-Loir in 1265.