No, Pope Gregory the Great .was also known as Pope Gregory
I.
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Pope Gregory XVI died on June 1, 1846 at the age of 80.
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Pope Gregory XVI was born on September 18, 1765 and died on June
1, 1846. Pope Gregory XVI would have been 80 years old at the time
of death or 249 years old today.
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The last pope to resign (before Benedict XVI) was Gregory XII in
1415.