Cognomen Melchiori (Melchiori 
) , all around the world, is quite a rare family name. The family name Melchiori is characteristic of Italy, where it is quite a rare surname, Argentina, and Portugal, where it is a rare surname. Not in comparison with a country's population, it most frequently occurs in Italy, Argentina, and Brazil. Much less frequently, Melchiori is the forename as well as the last name.
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| Melchiori | Argentina, Brazil, France, Italy, United States |
| francesco melchiori Melchiori, Francesco, 1528-1590, IT (b. 1528) |
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| angelo melchiori Roman Catholic bishop (b. 1593) |
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| melchiorre melchiori Italian painter (1641-1686), IT (b. 1641) |
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| giovanni paolo melchiori Italian painter, printmaker and engraver, IT (b. 1664) |
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| giovanni battista melchiori IT (b. 1811) |
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| antonio melchiori 25 November 1827 — 29 July 1897 (b. 1827) |
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| josef gf. melchiori IT (b. 1826) |
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| francesco giacinto melchiori AL (b. 1862) |
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| luigi melchiori (b. 1867) |
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| egisto domenico melchiori IT (b. 1879) |
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| alessandro melchiori Italian politician, IT (b. 1901) |
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| giorgio melchiori Italian literary critic, IT (b. 1920) |
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julian melchiori Canadian ice hockey player, CA (b. 1991) |
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| stefano melchiori Italian association football player, IT (b. 1965) |
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| markus melchiori German church musician and university professor, DE (b. 1975) |
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