Richard Southwell was an Irish politician.

He was the fifth and youngest son of Richard Southwell

Richard Southwell (Askeaton politician)

Richard Southwell was an Irish politician.He was the only son of Sir Thomas Southwell, 1st Baronet and his wife Elizabeth Starkey, daughter of William Starkey. Southwell was elected to the Irish House of Commons for Askeaton in 1661, representing the constituency until 1666.He married Lady...

 and his wife Lady Elizabeth O'Brien, daughter of Murrough O'Brien, 1st Earl of Inchiquin

Murrough O'Brien, 1st Earl of Inchiquin

Murrough McDermod O'Brien, 1st Earl of Inchiquin and 6th Baron Inchiquin , was known as Murchadh na dTóiteán ....

. His older brothers were Thomas Southwell, 1st Baron Southwell

Thomas Southwell, 1st Baron Southwell

Thomas Southwell, 1st Baron Southwell PC , known as Sir Thomas Southwell, 2nd Baronet from 1681 to 1717, was an Irish peer and politician.-Background:...

 and William Southwell

William Southwell

-Background:He was the third son of Richard Southwell of Castle Mattress, Co. Limerick, and his wife Lady Elizabeth O'Brien, daughter of Murrough O'Brien, 1st Earl of Inchiquin. His older brothers were Thomas Southwell, 1st Baron Southwell and Richard Southwell...

. During the Glorious Revolution

Glorious Revolution

The Glorious Revolution, also called the Revolution of 1688, is the overthrow of King James II of England by a union of English Parliamentarians with the Dutch stadtholder William III of Orange-Nassau...

 of 1689, he and his brothers were attainted by the parliament of King James II of England. Southwell was High Sheriff of County Limerick

High Sheriff of County Limerick

The High Sheriff of Limerick was the British Crown’s judicial representative in County Limerick, Ireland from the 16th century until 1922, when the office was abolished in the new Free State and replaced by the office of Limerick County Sheriff. The sheriff had judicial, electoral, ceremonial and...

 in 1707. He was elected to 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...

 for Limerick County

Limerick County (Parliament of Ireland constituency)

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

in 1727, representing the constituency until his death two years later.

Southwell married Agnes Rose, daughter of George Rose, and by her he had an only son.