Marquis Wilhelm von Klopstock was a disgraced former member of the Imperial high nobility, who died by suicide after a failed assassination attempt on Kaiser Friedrich IV in 796 UC.

Deeply bitter toward Kaiser Friedrich IV and Duke Otho von Braunschweig, Marquis Klopstock blamed them for the untimely death of his only son and heir, Johann von Klopstock.

(Source: Gineipaedia)