As it was, this granddaughter of his managed to live to the age of 100. This would mean that 210 years separated the birth of a grandparent at the death of the last grandchild. Once again, it would be interesting to know the world record on such a statistic ...
If we're including unofficial royalty, how about the Wagners, the so-called "Royal Family of Bayreuth"?
Richard Wagner's last surviving grandchild is still living 206 years after her grandfather's birth.
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