In 1932, Isay Rottenberg, a Jewish paper merchant, bought a cigar factory in Germany: Deutsche Zigarren-Werke. When his competitors, supported by Nazi authorities, tried to shut it down, the headstrong entrepreneur refused to give up the fight.Isay Rottenberg was born into a large Jewish family in Russian Poland in 1889 and grew up in Lodz. He left for Berlin at the age of eighteen to escape military service, moving again in 1917 to Amsterdam on the occasion of his...