John Desmond, 5th Earl - Irish Biography

Desmond, John, 5th Earl, son of preceding, was drowned near Ardfinnan, on the Suir, when returning with his followers from an incursion into the Earl of Ormond's territory, 4th March 1399, and was buried at Youghal. He married according to one account, Mary Bourke; or, according to Lodge, Joan, daughter of the Lord of Fermoy.

Sources

147. Geraldine Documents: Edited by Rev. James Graves: in Journal of the Archaeological Association of Ireland, October, 1869.

147a. Gillespie, Major-General Sir Robert R., Memoir. London, 1816.