Johann Christoph Bach was born on December 6, 1642 and died on March 31, 1703. Johann Christoph Bach would have been 60 years old at the time of death or 369 years old today.
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Johann Christoph Friedrich Bach was born on June 21, 1732 and died on January 26, 1795. Johann Christoph Friedrich Bach would have been 62 years old at the time of death or 279 years old today.
Johann Christian Bach was born on September 5, 1735 and died on January 1, 1782. Johann Christian Bach would have been 46 years old at the time of death or 276 years old today.