sentences:  The second manuscript, which came to be known as the Zelená Hora manuscript or "Green mountain manuscript" was 1819, named after the Zelená Hora Castle in which it was purportedly discovered.It had been mailed anonymously in 1818 to Franz, Count Kolowrat-Liebsteinsky at the Bohemian Museum.The Count was Lord High Castellan ("Oberst-Burggraf") of Prague and backer of the newly founded museum.