Portal:Germany/Anniversaries/October/October 11
Appearance
![Ehrenfried Walther von Tschirnhaus](http://upload.wikimedia.org/wikipedia/commons/thumb/5/51/Tschirnhaus.jpg/100px-Tschirnhaus.jpg)
- 1347 – Death of Louis IV, Holy Roman Emperor
- 1616 – Birth of poet Andreas Gryphius
- 1708 – Death of scientist Ehrenfried Walther von Tschirnhaus, inventor of the European porcelain
- 1852 – Death of mathematician Ferdinand Eisenstein