ɡiːjˈoʊmz sˈʌn, ˈæmɔːɹi bɪɡˈæn bˈɪldɪŋ ɐ kˈæsəl ðæt wʊd ᵻvˈɛntʃuːəli bɪkˌʌm ðɪ ɛpˈɑːnɪməs mˈɔntfɔːɹtˈɛlˈæmɔːɹi.
Guillaume's son, Amaury began building a castle that would eventually become the eponymous Montfort-l'Amaury.