Who is this person?

[Eva Elisabeth]

Thanks for your reply, Roger!! I really was not sure (had no PLAN) what to do. I thought one could see in the picture he was a GENERAL (much older st the time of the CW though - and before I had only seen pictures of him at older age. Also I thought SNAKE (not a cobra, another species) and PLAN would have revealed him.
Hint #4: He died in 1866.