House of Clermont

The House of Clermont is a noble family of the French region of Picardy dating from the 10th century and included both the early counts of Clermont-en-Beauvaisis as well as many Constables of France. The house eventually merged with the House of Nesle with the marriage of Raoul II of Clermont and Gertrude of Nesle. The family is the sometimes referred to as the House of Clermont-Nesle (Maison de Clermont-Nesle).

The founders of the House of Clermont are known by name only and are among the early counts of Clermont-en-Beauvaisis:

The first Clermont for which there is any information is Hugh I, Count of Clermont-en-Beauvaisis, (1030-1102), son of Renaud I. Hugh married Marguerite, daughter of Hilduin IV, Count of Montdidier. Among their children were:

Renaud II, Count of Clermont-en-Beuavaisis, son of Hugh, was the next prominent member of the House of Clermont. Renaud took the Cross as part of the First Crusade and participated in the siege of Nicaea and the Battle of Dorylaeum in 1097. He married three times: First, to Adelaide, daughter of Herbert IV, Count of Vermandois. Their daughter Marguetite married first to Charles I, Count of Flanders, the only son of Canute IV, King of Denmark, and, widowed, then to Hugh II, Count of Saint-Pol. Renaud’s second wife’s name is unknown (not atypical for this era). The union produced three prominent children:

Renaud’s third wife was Clemence de Bar, daughter of Reginald I, Count of Bar. Renaud and Clemence had six children.

At this point, the House of Clermont splits into two branches: the descendants of Raoul I the Red and those of Simon I.

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