Cognomen Keijser (Keijser 
) , throughout the world, is quite a rare last name. The cognomen Keijser is characteristic of Netherlands, where it is quite a rare surname, Belgium, and Sweden.
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| Keijser | Sweden, Belgium, United States, Greece, Netherlands |
| niclas keijser (1481-1569), DE (b. 1481) |
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| ambrosius markusson keijser SE (b. 1550) |
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| herman de keijser 1603 - 7 May 1663 (b. 1603) |
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| leendert de keijser 24 Aug 1632 Zierikzee - 27 Jan 1667 Zierikzee (b. 1632) |
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| dr. johan de keijser Aug 1635 - Nov 1678 (b. 1635) |
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| rutger keijser NL (b. 1665) |
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| quirina de keijser 3 Feb 1678 Zierikzee - 20 Oct 1750 Zierikzee (b. 1678) |
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| gustaf jacob keijser Swedish philosopher (1844-1916), SE (b. 1844) |
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| ernst jakob keijser (b. 1846) |
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| lucie keijser Dutch artist, NL (b. 1875) |
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| sijbrand keijser NL (b. 1889) |
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| harry de keijser Dutch sportsperson and athletics competitor (1900-1995), NL (b. 1900) |
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| elisabeth keijser Dutch Righteous Among the Nations, NL (b. 1910) |
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| christiaan keijser Dutch Righteous Among the Nations, NL (b. 1910) |
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| rudolf keijser Swedish musician (1922-1991), SE (b. 1922) |
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