Surname Southwell (Southwell 
) , globally, is quite a common cognomen. The surname Southwell is habitual in Antigua and Barbuda, where it is quite a common surname, Saint Lucia, and Australia, where it is quite a rare surname. Not in comparison with a country's population, it is the most numerous in the United States, the United Kingdom, and Australia.
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| Southwell | United Kingdom, Argentina, United States, Australia, Canada |
| richard southwell British administrator from Norfolk (b. 1449) |
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richard southwell English courtier and politician (1502-1564) (b. 1502) |
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robert southwell English Jesuit and poet (1561–1595), GB (b. 1561) |
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| robert southwell English administrator (b. 1520) |
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| thomas southwell (b. 1537) |
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| robert southwell politician (b. 1563) |
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| anne southwell Southwell [née Harris], Anne, Lady Southwell (bap. 1574, d. 1636), poet, GB (b. 1574) |
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sir robert southwell English diplomat, Secretary of State for Ireland and President of the Royal Society, IE (b. 1635) |
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| elizabeth southwell (b. 1585) |
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| robert southwell administrator and local politician (b. 1608) |
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thomas southwell, 1st baron southwell Irish politician (b. 1665) |
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edward southwell politician, GB (b. 1671) |
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elizabeth southwell, lady cromwell British noblewoman (b. 1674) |
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| william southwell Irish politician (b. 1669) |
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| richard southwell Irish politician (c. 1671-1729) (b. 1670) |
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