Cronstedt is a surname. Notable people with the surname include:
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Axel Fredrik Cronstedt, Swedish chemist
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Carl Olof Cronstedt, Swedish naval commander
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Carl Johan Cronstedt, Swedish architect, inventor, Earl, noble, civil servant, scientist and bibliophile
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Claes Cronstedt, Swedish corporate lawyer
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Dagmar Cronstedt
Dagmar Carola Adelaide Cronstedt (5 October, 1919–5 December, 2006) was a Swedish countess who during the Second World War worked at Radio Königsberg, broadcasting German propaganda to neutral Sweden. She mainly did a talk show together wi ...
(1919–2006), Swedish countess and radio personality
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Johan Adam Cronstedt, Swedish general
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