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The term Frank in eastern Mediterranean countries was used, in various vernacular forms, to denote the Crusaders and their descendants, and the American surname may also be an Americanized form of such a form.English, Dutch, German, etc.: from the personal name Frank, in origin an ethnic name for a Frank.
Otto Frank is born on May 12, 1889 in Frankfurt am Main.He has an older brother Robert (1886), a younger brother Herbert (1891) and a sister Helene (1893). His father Michael heads the family bank, which specializes in currency trading. The Franks are liberal Jews.tto Frank is born on May 12, 1889 in Frankfurt am Main.