In July 1753, Bowen Southwell married Lady Elizabeth Cornwallis and Southwell entered the Irish House of Commons, the lower house of the Parliament of Ireland that existed from 1297 until 1800, for Downpatrick in 1755, representing the constituency until 1760.
In July 1753, Bowen Southwell married Lady Elizabeth Cornwallis and Southwell entered the Irish House of Commons, the lower house of the Parliament of Ireland that existed from 1297 until 1800, for Downpatrick in 1755, representing the constituency until 1760.