Henry Beresford, 2nd Marquess of Waterford
Beresford entered the Irish House of Commons for Londonderry County in 1790 and sat for the constituency until the Act of Union. In 1798, he also stood for Coleraine but chose not to sit. Beresford became Marquess of Waterford in 1800 after the death of George Beresford, 1st Marquess of Waterford and was appointed a Knight of the Order of St Patrick on 14 March 1806.
- Rayment, Leigh. "Knights of the Order of St Patrick". Retrieved 2008-12-13.
|Parliament of Ireland|
| Member of Parliament for Londonderry County
With: Thomas Conolly 1790–1800
Hon. Charles William Stewart 1800–1801
Parliament of the United Kingdom
John Staunton Rochfort
William Domville Stanley Monck
| Member of Parliament for Coleraine
With: John Beresford
|Peerage of Ireland|
| Marquess of Waterford