When Brien was assassinated in 1562 by Turlough Luineach O'Neill, tanist to Shane the Proud, "between Carlingford and the Newry,"[REF] his younger brother Hugh continued to be treated as Baron Dungannon; when he grew up, he fought alongside the Queen's government against his uncle Shane and his cousin Turlough.
In 1585, Hugh O'Neill was seated in the Irish Parliament as Earl of Tyrone; in 1587, he received a regrant and confirmation of the Earldom, which also confirmed his son Hugh as Baron of Dungannon.