In the 11th century, in 1008, Bernard of Menthon - St Bernard, patron saint of skiers - was born in the castle. He later founded the hospice at the Great St Bernard Pass and abbeys in the high mountains.
From 1180, the castle was occupied by the Menthon family who still live there. The origin of the family is uncertain but they came from Burgundy and acquired a degree of feudal power. After their arrival, they constructed the three big square towers.
During the Renaissance, the medieval fortress was transformed into a sumptuous residence, seat of the Barony of Menthon. Apartments took the place of the round walk between the towers and the Menthon family bought a large quantity of furniture.
The general appearance of the castle was unchanged until 1740, when several alterations were carried out to increase comfort. A suite of spacious light rooms was added onto the side facing the lake, comprising the dining room and the grand hall of 100 m² giving a view of the lake from its four windows.
In the 19th century, between 1860 and 1890, the castle was restyled (consolidation, raising of walls, adding of turrets, creation of a half-timbered gallery in the inner courtyard). by the count, René de Menthon, a fervent disciple of Viollet-le-Duc, who gave the château the appearance it has today.
François de Menthon, father of the present count, was a lawyer and member of the Resistance who represented France at the Nuremberg Trials. He worked for the creation of a united Europe and was Minister of Justice under De Gaulle.
The library contains more than 12,000 works from before 1800, including incunabulum and ancient manuscripts written on parchment, sheepskin or goatskin, with painted illuminations from monks of the Middle Ages. The bulk of the books date from the 16th, 17th and 18th centuries.
The castle is open from May to September. In summer, the visit is augmented by a troop of actors who relive the past of the castle. Each year some 40,000 visitors are welcomed.
In 2008, for the anniversary of the birth of Bernard de Menthon, special commemorations are being organised.