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Daughter of Graf Oscar Filippo Oscar Hierschel de Minerbi and Gräfin Emilie Julia/Giulia von Obermayer Wife of Mario Leone Rocca Sister of Comte Carlo Lionello Edwin Gioacchino Hierschel de Minerbi and Pietro Hierschel
https://books.google.nl/books?id=TCSBDQAAQBAJ&pg=PT126&lpg=PT126&dq...
https://gw.geneanet.org/fcicogna?lang=en&pz=francesco+maria&nz=cico...