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Son of Mahon Maonmhaighe O'Brien, Lord of Thomond and Una O'Connor Husband of Slaney MacNamara Father of Turlough the Soft O'Brien, King of Thomond; Tadhg an Glemore Ó Briain, King of Thomond and Mathghamhan Dall Ó Briain, King of Thomond Brother of Conchobhar Ó Briain, King of Thomond
King of Thomond