Jan Mårtenson
Swedish diplomat
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Jan Per Gösta Mårtenson is a Swedish diplomat who is also famous as the author of some fifty Swedish crime novels. Wikipedia
Born: 1933 (age 91 years), Uppsala, Sweden
Books: Tre skilling banco, Medicis ring, Mord i Venedig, and more
Spouse: Ingrid Giertz-Mårtenson (m. 1967)