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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.
Margot Betti Frank, named after maternal aunt, Bettina HollÃ¤nder (1898-1914), was born in Frankfurt, Germany, to Jewish parents, and lived in the outer suburbs of the city with her parents, Otto Frank and Edith Frank-HollÃ¤nder, and also her younger sister Anne Frank, during the early years of her life.