Complex sentence: In 1956, Briscoe became the first Jewish Lord Mayor of Dublin, although he was not the first Jewish Mayor in Ireland; that title belongs to William Annyas, who was elected in 1555 as the mayor of Youghal in County Cork.
Split into simpler sentences: In 1956, Briscoe became the first Jewish Lord Mayor of Dublin, although he was not the first Jewish Mayor in Ireland. That title belongs to William Annyas, who was elected in 1555 as Mayor of Youghal, County Cork.