The House of Montdidier was a medieval French noble house which ruled as count of Montdidier, Dammartin and Roucy. Its earliest definite member of the family was a certain Hilduin, who died before 956 and was known as comte de Montdidier.
The House of Montdidier was a medieval French noble house which ruled as count of Montdidier, Dammartin and Roucy. Its earliest definite member of the family was a certain Hilduin, who died before 956 and was known as comte de Montdidier.