Family name Lattanzio (Lattanzio 
) , across the world, is quite a common last name. The family name Lattanzio is habitual in Italy, where it is quite a rare surname, Argentina, and Uruguay, where it is a rare surname. Not in comparison with a country's population, it is the most numerous in Italy, the United States, and Argentina. Very seldom, Lattanzio is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Lattanzio | Italy, United States, Argentina, Canada, France |
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lattanzio gambara Italian painter (1530-1574), IT (b. 1530) |
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| lattanzio gorini (b. 1496) |
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| lattanzio ragnoni Italian jurist and politician, IT (b. 1509) |
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| lattanzio pagani Italian painter (1520-1582), IT (b. 1520) |
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| lattanzio roverella Roman Catholic bishop (b. 1523) |
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| lattanzio benucci (b. 1521) |
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| lattanzio domanino FR (b. 1540) |
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| lattanzio bonastri da lucignano painter (1550-1583), IT (b. 1550) |
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| lattanzio magiotti Italian physician, IT (b. 1590) |
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| lattanzio agucchia author (17th century) (b. 1601) |
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lattanzio querena Italian painter (1768-1853), IT (b. 1768) |
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vito lattanzio Italian politician (1926-2010), IT (b. 1926) |
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| lattanzio firmian IT (b. 1879) |
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| ruggero lattanzio Italian physician and teacher, IT (b. 1912) |
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paolo lattanzio Italian politician, IT (b. 1979) |
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