Abraham Gotthelf Kästner died on June 20, 1800 at the age of 80.
This answer is closed to changes. This is done in rare cases when questions are being vandalized or answers have become debates. E-mail reopen @ answers.com (no spaces) if you would like it to be reopened.
Abraham Gotthelf Kästner was born on September 27, 1719 and died on June 20, 1800. Abraham Gotthelf Kästner would have been 80 years old at the time of death or 292 years old today.