ðə fˈæmɪli bɪɡˈæn wɛn hjˈuː kˈæpɪt ɡɹˈæntᵻd ɐ pˈɛɾi lˈɔːɹdʃɪp tə ɡiːjˈoʊm də mˈɔntfɔːɹt ɪnðɪ ˈaɪldəfɹˈæns.
The family began when Hugh Capet granted a petty lordship to Guillaume de Montfort in the Île-de-France.