Background
He was the second son of Thomas Southwell, 1st Baron Southwell and his wife Lady Meliora Coningsby, eldest daughter of Thomas Coningsby, 1st Earl Coningsby.
He was the second son of Thomas Southwell, 1st Baron Southwell and his wife Lady Meliora Coningsby, eldest daughter of Thomas Coningsby, 1st Earl Coningsby.
He was appointed Deputy Governor of County Limerick in and captain of a troop of grenadiers in 1735.
