Surname Sonneborn (Sonneborn 
) , all over the world, is quite a rare cognomen. The cognomen Sonneborn is habitual in Western Europe, particularly Germany, where it is quite a rare surname, Netherlands, where it is a rare surname, and Switzerland. In absolute terms, it is commonest in Germany, the United States, and Brazil.
| VARIANT | COUNTRY |
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| Sonneborn | Germany, Netherlands, Brazil, United States, Argentina |
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rudolf sonneborn American businessman, US (b. 1898) |
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| rosa sonneborn holocaust victim, b. 1871-06-19, DE (b. 1871) |
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| jaques sonneborn DE (b. 1863) |
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| isidor sonneborn holocaust victim, b. 1880-07-18, DE (b. 1880) |
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| bernhard sonneborn (1891-1962) (b. 1891) |
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| karl sonneborn (b. 1888) |
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| tracy sonneborn American biologist, US (b. 1905) |
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| marlise sonneborn (b. 1898) |
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martin sonneborn German satirist, journalist and politician, DE (b. 1965) |
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| harry j. sonneborn American businessman, US (b. 1915) |
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| günter sonneborn German musician, DE (b. 1921) |
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| henry sonneborn (b. 1918) |
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jessica sonneborn American actress, US |
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| irmgard sonneborn DE (b. 1922) |
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| engelbert sonneborn Candidate for Bundespräsident 2017, DE (b. 1938) |
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