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Cognomen Вильгельми (Wilhelmi , Vilgelmi , Wilhelmy ) , all around the world, is quite a common surname. The cognomen Вильгельми is characteristic of Western Europe, particularly Germany, where it is quite a rare surname, Luxembourg, and Belgium, where it is a rare surname. Measured by absolute frequency, it is the most numerous in Germany, the United States, and Poland. Much less frequently, Вильгельми is the forename as well as the last name.