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Cognomen Hrólfur (Hrólfur , Hrólfr) , in all the world, is an extremely rare surname. Much more frequently, Hrólfur is the forename as well as the last name.
VARIANT | COUNTRY |
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Hrólfur | Iceland |
Mar, Eggerz, Tómasson, Eyjólfsson, Sigurðsson, Pétursson, and Kristinsson