R' Jacob Koppel HaLevi Fränkel

See profile on pp.9-11 of The Fränkel Family, uploaded under "Documents" under the "Media" tab.

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See article "Koppel Fraenkel and His Descendants" under "Documents" under the "Media" tab.

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See http://www.jewishencyclopedia.com/view.jsp?letter=F&artid=310

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See Wachstein, http://www.geni.com/documents/view?doc_id=6000000009969408341

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See Genealogical Tables of Jewish Families 14th - 20th Centuries. Forgotten Fragments of the History of the Fraenkel Family. By Louis and Henry Fraenkel. (Details about the book are available at: http://www.jewishgen.org/scandinavia/frankel.htm)

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See contradictory tree at http://freepages.genealogy.rootsweb.ancestry.com/~prohel/names/loew... Warning: The tree shows his father and his three wives, and three married daughters and one married son, but the Fränkel family entry displayed there from the Jewish Encyclopedia says that he was "the earliest known member..." and claims "only one of his four daughters was married...". And on Geni that same "daughter" is listed as the daughter of a different Koppel Fraenkel.

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Die Grabschriften des Alten Judenfriedhofes in Wien"

Band II- by Dr. Bernhard Wachstein-pg. 434

Die Grabschriften des Alten Judenfriedhofes in Wien"

Band I- by Dr. Bernhard Wachstein-no. 634

"Die Grabschriften des alten Judenfriedhof in Wien" - Dr. Bernhard Wachstein, Band I pg. 404

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Die Inschriften des alten Judenfriedhofes in Wien bei dr. Bernhard Wachstein- 1 teil Nachtrag - No. 61, page540-541.

Yaakov Ben Yirmiyahu Yitzchak SG"L

There seems to be much confusion regarding his descendants.