Ludwig von Mises was born on September 29, 1881 and died on October 10, 1973. Ludwig von Mises would have been 92 years old at the time of death or 130 years old today.
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Ludwig Ritter von Köchel was born on January 14, 1800 and died on June 3, 1877. Ludwig Ritter von Köchel would have been 77 years old at the time of death or 212 years old today.