 The O'Neill clan had a strong fort here, with their soldiers based at nearby Dernagilly.They fought the famous battle of Dreigh Hill in 1379 against the Maguires and won a victory which settled the Tyrone/Fermanagh county boundary here.The Annals record the death in 1526 of Henry O'Neill, Lord of the Braghaid, the name given to the territory ruled by the O'Neills from Old Trielic.