Surname Fortis (Fort 
, Force , Forte ) , worldwide, is a widespread family name. The family name Fortis is habitual in Jersey, where it is quite a common surname, Barbados, and Saint Lucia (explore the name in all countries). Measured by absolute frequency, it is commonest in the United States, Italy, and France. Very seldom, Fortis is the forename as well as the last name.
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| Forte, Fort, Fortis, Force | France, Argentina, Italy, Brazil, United States |
| tiberius claudius fortis (b. 100) |
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| aelius fortis (b. 150) |
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| raimondo giovanni fortis (b. 1603) |
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| raimondo giovanni fortis (b. 1603) |
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alberto fortis Italian writer, naturalist and cartographer (1741-1803), IT (b. 1741) |
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luigi fortis Superior General of the Society of Jesus, IT (b. 1748) |
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alessandro fortis Italian politician (1842-1909), IT (b. 1841) |
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| eugenia fortis IT (b. 1822) |
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| eugenia pavia gentilomo fortis IT (b. 1822) |
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alberto fortis Italian musician, IT (b. 1955) |
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| sara fortis former Greek-Israeli resistance member, GR (b. 1927) |
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| giuseppe fortis Italian actor, IT (b. 1935) |
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| louis fortis American politician in Wisconsin (born 1947), US (b. 1947) |
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| marco fortis (b. 1956) |
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| jacques fortis French politician, FR (b. 1971) |
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