ðə sˈæksən kˈɪŋ ˌæθɪlstˈɑːn pɹˈɑːbəbli bˈɪlt ðə fˈɜːst fˌɔːɹɾɪfɪkˈeɪʃən æt kˈɑːwʊd ɔnðə sˈaɪt ʌvðə pɹˈɛzənt kˈæsəl ɹˈuːɪnz.
The Saxon King Athelstan probably built the first fortification at Cawood on the site of the present castle ruins.