Surname Rathlou (Rathlou 
) , in all the world, is a very rare cognomen. The surname Rathlou is characteristic of Denmark, where it is a rare surname, Canada, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Rathlou | United Kingdom, United States, Canada, Denmark, Brazil |
| christian von rathlou (b. 1677) |
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| viggo julius von holstein rathlou DK (b. 1885) |
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| margarethe von rathlou 1569 - 11 May 1641 |
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| mette rathlou |
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