 In 2007 , Wood revived the Irish theory , questioning whether Flodoard 's " Israel Britto " means " Breton " , and stating that Ruotger knew Israel . Æthelstan 's biographer , Sarah Foot , mentions Wood 's view , but she rejects it , stating that Israel was not Irish and may have been a Breton . Thomas Charles @-@ Edwards , a historian of medieval Wales , thinks he may have been Welsh . 
