Cognomen Bertolf (Bertolf 
) , worldwide, is a very rare last name. The family name Bertolf is characteristic of Switzerland, where it is a rare surname, France, where it is an extremely rare surname, and the United States. Much less frequently, Bertolf is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Bertolf | United States, Switzerland, Spain, France |
| johann bertolf German politician (1400-1407), DE (b. 1400) |
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| heinrich bertolf German judge and politician, DE (b. 1400) |
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| martin bertolf German politician, DE (b. 1400) |
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| johann bertolf German politician, DE (b. 1500) |
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| hans bertolf CH (b. 1907) |
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bertolf lentink singer songwriter and guitar player, NL (b. 1980) |
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| gregor bertolf |
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| hilarius bertolf |
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