Surname Leffler (Leffler 
) , in the entire world, is quite a common cognomen. The family name Leffler is habitual in Sweden, where it is quite a rare surname, the United States, and Germany.
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| Leffler | Sweden, United States, Germany, Canada, Argentina |
| františek xaver leffler CZ (b. 1658) |
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| gotthard leffler (b. 1672) |
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| georg leffler (b. 1675) |
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| johanna sophia leffler DE (b. 1675) |
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| christoph reinhold leffler (b. 1696) |
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| jeanna märta leffler SE (b. 1705) |
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| sven hansson leffler SE (b. 1712) |
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| johan leffler Swedish, born 1723, dead 1800, active 1754 - 1800; male; goldsmith, silversmed; Place of activity: Falun, Sweden, SE (b. 1723) |
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sven peter leffler SE (b. 1776) |
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niklas robert leffler Swedish artist, SE (b. 1811) |
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| eric daniel leffler SE (b. 1761) |
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olof leffler SE (b. 1813) |
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| niklas leffler Swedish painter, SE (b. 1775) |
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| johan henrik leffler SE (b. 1768) |
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| isaac leffler American politician (1788-1866), US (b. 1788) |
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