O'connor, Charles a learned Irish Roman Catholic divine, who for many years was a resident in the family of the-duke of Buckingham atStowe as chaplain to the duchess and librarian to the duke, is the author of Columbanus's Letters (2 vols.), a Narrative of the most interesting Events in Modern Irish History, and a collection of the ancient Irish chronicles; his studies having been chiefly. directed to the elucidation of the history and antiquities of Ireland. He eld 'in' 1828 at Balinagar, the seat of his brother, the O'Conor Don. See Allibone, Dict. of Brit. and Amer. Authors, s.v.