Conde de Tiron in 1695. There were other titles laid out in the will of Don Juan (John/Shane/Sean) O'Neill, Earl of Tyrone, in 1660. They include Viscount of Tyrone, Viscount of Montoy, Baron of Strabane, and Lord of the Clannaboy. There is a later account of the O'Neills acquiring the comital title of Clanawley. Although the title of Baron of Dungannon would traditionally still be preserved with the title of Count/Earl of Tyrone, it is not currently used by anyone in the extended O'Neill family. Another of the more famous O'Neills of Tyrone was Owen Roe O'Neill (c. 1590–1649), a brilliant 17th-century military commander and one of the most famous of the O'Neill family of Ulster. He was the son of Art O'Neill, a younger brother of Hugh O'Neill, 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 siege of Arras, where he commanded the Spanish garrison. O'Neill was, like many Gaelic Irish officers in the Spanish service, hostile to the English Protestant invasion of Ireland. He returned to Ireland during the Irish Rebellion of 1641 to command the Irish Ulster Army during the Irish Confederate Wars. He was reportedly poisoned by Cromwell's supporters and died in 1649. Slight-Arte O'Neills This is another branch of the Tyrone O'Neills which started in the mid 15th century. The name translates to "of the sept of Art". Eoghan Mór O'Neill (Owen the Great), King of Tír Eoghan (Tyrone) from 1432 to 1456 had four sons who each started independent lines. His eldest, Henry, was King of Tyrone from 1455 to 1489 and was the grandfather of Conn Bacach. Aodh, his second son started the line of the Fews. Art, his third son, was King of Tyrone 1509–1514. This branch of the family held its lands in western Tyrone and was typically at a distance from those O'Neills centered on the traditional capitol of Dungannon. Art was unable to elevate his son to the kingship, but his grandson was Sir Turlough Luineach O'Neill, The O'Neill Mor 1567–1593, the Earl of ClanConnell, and de jure King of Tyrone for a rocky period during