Arthur O'Neill.

About Arthur O'Neill

Sir Arthur O'Neill or Sir Art O'Neill was an Irish soldier and landowner. He was part of the O'Neill dynasty, which was the most powerful Gaelic family in Ireland at the time. He was the son of Turlough Luineach O'Neill, the head of the O'Neill dynasty until 1595. He was the second son of Turlough, but his eldest brother Henry O'Neill died in 1578. At times he had a strained relationship with his father, and offered his support to Turlough's rival Hugh O'Neill, Earl of Tyrone. When Tyrone succeeded Turlough as head of the O'Neills and began Tyrone's Rebellion, Arthur offered tacit support to his distant cousin.