The following is a list of famous people who are believed to have been polydactyl:
Anne Boleyn - said to have had eleven fingers, although she only had a double fingernail and a lump on her little finger[1] (http://www.straightdope.com/classics/a3_053)
... Pädagogik als System (1848)
Aesthetik des Hässlichen (1853)
Die Poesie and ihre Geschichte (1885)
Studien (1839-47)
Neue Studien (1875-78).
He published also an ...