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Johann Adolph Bar. von Hahn — news, coverage & facts — IJR
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Johann Adolph Bar. von Hahn
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Person
Johann Adolph Bar. von Hahn
1855-1902
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Everything about Johann Adolph Bar. von Hahn
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Paul von Hahn
father
Lucie, Gräfin von Keyserling
mother
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Imperial University of Dorpat
educated at
