Emil Adolf von Behring (1854-1917)
1901 Nobel Prize (medicine) for work on serum therapy

The above depiction of von Behring's coat-of-arms is due to Jochen Wilke.
[ © 2004 Jochen Wilke.  This copyrighted image is reproduced here by permission. ]

Checky Sable and Argent, a snake Vert twined around a dagger Gules, point down.

Crest: On the helm a coronet, surmounted by the dagger and snake
of the shield between two wings checky.