Cognomen Pierret (Pierret 
) , across the world, is quite a common last name. The cognomen Pierret is habitual in Western Europe, particularly Luxembourg, where it is quite a common surname, Belgium, where it is quite a rare surname, and France. Not in comparison with a country's population, it is the most numerous in France, Belgium, and the United States. Very seldom, Pierret is the forename as well as the last name.
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| Pierret | France, Dominican Republic, United States, Belgium, Democratic Republic of the Congo |
| jean-françois pierret LU (b. 1673) |
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jean-françois pierret French politician, FR (b. 1738) |
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| johann franz pierret (b. 1688) |
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| antoine pierre 'cadet' pierret 1753 Vallentigny - 16 Jan 1835 Vallentigny (b. 1753) |
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| joseph nicolas pierret French politician (1758-1825), FR (b. 1758) |
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| marie-antoinette pierret 17 Mar 1779 Vallentigny - 15 Feb 1864 Vallentigny (b. 1779) |
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| savinien pierret French painter and lithographer, FR (b. 1798) |
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| joseph louis pierret French politician, FR (b. 1801) |
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| victor-athanase pierret 1806–1893, FR (b. 1806) |
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| alexandre pierret (b. 1814) |
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| paul pierret French conservator (1836-1916), FR (b. 1836) |
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| auguste pierret FR (b. 1845) |
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| émile pierret French writer, FR (b. 1859) |
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| robert pierret physician (b. 1884) |
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| auguste jean pierre pierret FR (b. 1874) |
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