Surname Bertelsen (Bertelsen 
, Бертелсен 
) , in the entire world, is quite a common last name. The last name Bertelsen is characteristic of Greenland, where it is a common surname, Denmark, and Norway, where it is quite a common surname. Not in comparison with a country's population, it is the most numerous in Denmark, the United States, and Norway.
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| Bertelsen | Bangladesh, Denmark, Norway, Sweden, United States |
| Бертелсен | Ukraine |
Bertelson, Berthelsen, and Berthelson
| lauritz bertelsen Danish bishop (b. 1514) |
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| frederik bertelsen Danish missionary (1750-1828), GL (b. 1750) |
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aage bertelsen Danish painter (1873-1945), DK (b. 1873) |
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| rudolf vilhelm valdemar bertelsen Danish painter and educator (1828-1921), DK (b. 1828) |
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henrik bertelsen DK (b. 1874) |
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| ola bertelsen Norwegian politician (1864-1946) (b. 1864) |
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| nils bertelsen sailor, NO (b. 1879) |
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| ferdinand bertelsen NO (b. 1873) |
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| alfred bertelsen DK (b. 1877) |
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| henry bertelsen American architect, US (b. 1888) |
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| ingeborg bruhn bertelsen Danish actress, DK (b. 1894) |
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| erik bertelsen Danish poet (1898–1969), DK (b. 1898) |
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| david bertelsen Danish actor (b. 1901) |
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| aage bertelsen Danish politician, DK (b. 1901) |
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| o.b. bertelsen Danish police officer (b. 1906) |
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