John O'Brien (bishop)
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Bishop John O'Brien (d. 1767) was an Irish prelate.
[edit] Biography
O'Brien was the bishop of Cork and Cloyne as well as the vicar general of Cork, Cloyne and Ross. O'Brien appealed to the Pope for financial assistance in compiling an Irish-English dictionary. He argued the dictionary was needed for the preservation of Catholicism in Ireland, primarily for the use of young priests beginning their work there. Focaloir Gaoidhilge-Sax-Bearha or 'The Irish-English Dictionary' was published in 1768.[1]