 Complete the following phrase:  Another of the more famous ONeills of Tyrone was Owen Roe ONeill c. 15901649, a brilliant 17th-century military commander and one of the most famous of the ONeill family of Ulster. He was the son of Art ONeill, a younger brother of Hugh ONeill, 2nd Earl of Tyrone. As a young man, he left Ireland in the Flight of the Earls to escape the English conquest of his native Ulster. He grew up in the Spanish Netherlands and spent 40 years serving in the Irish regiment of the Spanish Army, mainly in the Eighty Years War against the Dutch Republic in Flanders, notably at the 