Karl Heinrich Mertens, was a German botanist and naturalist, and son of the botanist Franz Carl Mertens.
Mertens was aboard the Russian vessel Senyavin under Captain Lieutenant Fedor Petrovich Litke with orders to explore the coasts of Russian... Wikipedia
Born: May 7, 1796
Died: September 29, 1830 (age 34 years), Kronstadt, Saint Petersburg, Russia
Parents: Franz Carl Mertens