Family name Arenfeldt (Arenfeldt 
) , in the entire world, is a very rare cognomen. The surname Arenfeldt is characteristic of Northern Europe, particularly Denmark, where it is a rare surname. Very seldom, Arenfeldt is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Arenfeldt | United States, Denmark |
| niels henriksen arenfeldt Danish judge (b. 1480) |
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axel arenfeldt Danish government official and landowner, DK (b. 1590) |
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| jørgen arenfeldt DK (b. 1644) |
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jacob arenfeldt Danish military personnel (1755-1820) (b. 1755) |
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christian ditlev adolph arenfeldt DE (b. 1758) |
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| jacob arenfeldt DK (b. 1723) |
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| mette johanne lagesdatter arenfeldt 1705 - 1762 |
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