The counts of Clermont-en-Beauvaisis first appeared in the early 11th century. Their principal town was Clermont, now in the Oise department but then within the ancient county of Beauvaisis in the province of Île-de-France.
First counts
• Baldwin I of Clermont (?–1023) • Baldwin II of Clermont (1023–1042), son of Baldwin I. ==House of Clermont==
• Philip Hurepel (1218–1234), son of Philip II of France • Alberic (1234–?), son of Philip, resigned the title to his sister • Jeanne, Countess of Clermont-en-Beauvaisis (?–1252), daughter of Philip. On her death without heirs, the title reverted to the crown. ==House of Bourbon (1268)==