House of Montfort

House of Montfort was a medieval French noble house that eventually found its way to the Kingdom of England and originated the famous Simon de Montfort, 6th Earl of Leicester; although his father Simon de Monfort the Elder, leader of the French Crusaders during the Albigensian Crusade, is far more notorious in France and among military medievalists.

Montfort
Country	France, England
Founded	c.990
Founder	Guillaume de Montfort
Titles	Seigneur of Montfort Earl of Leicester (1206–1265) Count of Évreux (1118–1195) Count of Bigorre (1216–1220, 1251–1255)
Estate(s)	Montfort-l'Amaury (ancestral)

The family began when Hugh Capet granted a petty lordship to Guillaume de Montfort in the Île-de-France. His successors were to be the vassals of the counts of Beaumont. Guillaume's son, Amaury began building a castle that would eventually become the eponymous Montfort-l'Amaury. The project, however, was incomplete when he died circa 1053, but his son, Simon was able to finish it in 1067.[1] His great-grandson, Simon IV would eventually marry the heiress of Leicester and their son, Simon V would become the first Montfort earl of Leicester.[2]

During the 13th century the family lost their ancestral seat of Montfort-l'Amaury to the House of Dreux.[2]