adulterine castle
Castle built in England without royal approval, particularly during the civil war of 1139 to 1154.
en-US/əˈdʌltəɹɪn ˈkæsəl/
en-GB/ədʌltəɹiːn ˈkɑːsl/
Castle built in England without royal approval, particularly during the civil war of 1139 to 1154.