All around the world, Tranquillo (Tranquillo 
) is quite a rare boy's first name. The given name Tranquillo is habitual in Italy, where it is quite a rare male name, Switzerland, where it is a rare boy's name, and France, where it is a very rare masculine name. In absolute terms, it is the most numerous in Italy, Brazil, and France. Also, Tranquillo is the last name as well as the forename.
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| Tranquillo | Philippines, Brazil, Italy, Argentina, United States |
| tranquillo grassetti (b. 1588) |
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| tranquillo mollo Swiss publisher (1767-1837), CH (b. 1767) |
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| tranquillo orsi Italian architect, painter and scenographer, IT (b. 1771) |
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tranquillo cremona Italian painter (1837-1878), IT (b. 1837) |
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| tranquillo guarneri Roman Catholic bishop (1871-1937) (b. 1871) |
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| tranquillo bianco Italian actor, IT (b. 1883) |
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| tranquillo zerbi Italian automobile engineer (1891-1939), IT (b. 1891) |
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| tranquillo marangoni Italian engraver, IT (b. 1912) |
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| tranquillo casiraghi Italian artist (1923–2005), IT (b. 1923) |
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| tranquillo giustina Italian poet and writer, IT (b. 1929) |
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tranquillo barnetta Swiss footballer, CH (b. 1985) |
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| tranquillo scudellaro IT (b. 1930) |
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| tranquillo andreetta Italian cyclist, IT (b. 1955) |
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| tranquillo de macarazzi Roman Catholic bishop |
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| tranquillo gravina |
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