Robert Henry Southwell (October 1745[1] – 29 August 1817[2]), styled The Honourable from 1766, was an Irish politician.
He was the second son of Thomas Southwell, 1st Viscount Southwell and his wife Margaret Hamilton, daughter of Arthur Cecil Hamilton.
[4] In 1776, he entered the Irish House of Commons for Downpatrick, representing the constituency until 1783.
[3] Southwell died at Clontarf, Dublin.
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