Sir Neil O'Neill, 2nd Baronet

Sir Neil O'Neill (Irish: Niall Ua Néill; January 1658 – 8 July 1690),[1] 2nd Baronet of Killeleagh, County Antrim, was an Irish Jacobite, soldier and the Lord of Clandeboye, a powerful clan of the ancient Northern Uí Néill.

[2] O'Neill's portrait from 1680 by John Michael Wright is historically significant because it is the only surviving contemporary presentation of the traditional costume of an Irish chieftain.

An Irish Catholic noble and military leader, he was born in January 1658, the son of Sir Henry O'Neill, 1st Baronet of Shane's Castle, Killelagh,[1] and Eleanor Talbot, daughter of Sir William Talbot, 1st Baronet.

He led 800 Jacobite dragoons at the Battle of the Boyne against Williamite troops under the command of the Duke of Schomberg and was killed in action.

Daniel managed to retain much of the family estates, but as his brother had died deeply in debt, he was obliged to sell Killyleagh in 1703.