bˈoʊθ mˈɑːnɐstɚɹiz sˈʌfɚd fɹʌm ɪnvˈeɪʒənz baɪ ðə vˈaɪkɪŋz ænd sˈæɹəsənz, ænd wɜː dᵻstɹˈɔɪd ɪn ˈeɪthˈʌndɹɪd θˈɜːɾi ˈeɪt baɪ ɐ sˈæɹəsən flˈiːt, wˌɛn ðə ðˈɛnˈæbɛs sˈeɪnt juːsˈiːbiə wʌz ˈɔːlsoʊ mˈɑːɹɾɚd wɪð θˈɜːɾi nˈaɪn nˈʌnz.
Both monasteries suffered from invasions by the Vikings and Saracens, and were destroyed in 838 by a Saracen fleet, when the then-abbess Saint Eusebia was also martyred with 39 nuns.