Viscount O'Neill was a title in the Peerage of Ireland

Peerage of Ireland

The Peerage of Ireland is the term used for those titles of nobility created by the English and later British monarchs of Ireland in their capacity as Lord or King of Ireland. The creation of such titles came to an end in the 19th century. The ranks of the Irish peerage are Duke, Marquess, Earl,...

. It was created in 1795 for John O'Neill, who had earlier represented Randalstown

Randalstown (Parliament of Ireland constituency)

Randalstown was a constituency represented in the Irish House of Commons until 1800.-1692–1801:...

 and County Antrim in the Irish House of Commons

Irish House of Commons

The Irish House of Commons was the lower house of the Parliament of Ireland, that existed from 1297 until 1800. The upper house was the House of Lords...

. He had already been created Baron O'Neill, of Shane's Castle in the County of Antrim, in 1793, also in the Peerage of Ireland. He was succeeded by his son, the second Viscount. In 1800 he was created Viscount Raymond and Earl O'Neill in the Peerage of Ireland. The same year he was elected as one of the original 28 Irish Representative Peers

Representative peer

In the United Kingdom, representative peers were those peers elected by the members of the Peerage of Scotland and the Peerage of Ireland to sit in the British House of Lords...

. The viscountcy of Raymond and earldom became extinct on his death in 1841. The barony and viscountcy of O'Neill were passed on to his only brother, the third Viscount. These titles became extinct on the latter's death in 1855. The late Viscount's estates were inherited by his cousin, the Reverend William Chichester, who assumed the surname of O'Neill in lieu of Chichester the same year. In 1868 the O'Neill title was revived when he was created Baron O'Neill

Baron O'Neill

Baron O'Neill, of Shane's Castle in the County of Antrim, is a title in the Peerage of the United Kingdom. It was created in 1868 for the musical composer The Rev...

. This title is still extant.

The family seat was Shane's Castle

Shane's Castle

Shane's Castle is a ruined castle near Randalstown in County Antrim, Northern Ireland. The castle is on the north-east shores of Lough Neagh. Built in 1345 by a member of the O'Neill dynasty, it was originally called Eden-duff-carrick...

, County Antrim

County Antrim

County Antrim is one of six counties that form Northern Ireland, situated in the north-east of the island of Ireland. Adjoined to the north-east shore of Lough Neagh, the county covers an area of 2,844 km², with a population of approximately 616,000...

.

Viscounts O'Neill (1795)

• John O'Neill, 1st Viscount O'Neill (1740–1798)
• Charles Henry St John O'Neill, 2nd Viscount O'Neill
  Charles O'Neill, 1st Earl O'Neill
  Charles Henry St John O'Neill, 1st Earl O'Neill KP PC was an Irish politician, peer and landowner....
  
   (1779–1841) (created Earl O'Neill in 1800)

Earls O'Neill (1800)

• Charles Henry St John O'Neill, 1st Earl O'Neill
  Charles O'Neill, 1st Earl O'Neill
  Charles Henry St John O'Neill, 1st Earl O'Neill KP PC was an Irish politician, peer and landowner....
  
   (1779–1841)

Viscount O'Neill (1795; Reverted)

• John Bruce Richard O'Neill, 3rd Viscount O'Neill (1780–1855)