Last name Magnussøn (Magnussøn 
) , all over the world, is an extremely rare cognomen. The surname Magnussøn is characteristic of Northern Europe, particularly Norway, where it is a rare surname.
| abigael heber magnussøn Norwegian actor, NO (b. 1884) |
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| sigurd konrad magnussøn Norwegian actor (b. 1889) |
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| sigurd magnussøn Norwegian actor (1889-1961) (b. 1889) |
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