Somehow it calls for Sherlock Holmes, here is an excerpt from the the story:
"The Czech crown of Bohemia, the Wenceslas crown is not just any crown. Mystery surrounds it. The ominous legend that mysteriously envelops the crown states that of anyone, who wears it without the right to do so, will die within a year. Sadly, this myth seems to have proven to be true, even within the last 100 years. Therefore, the crown is securely locked behind not just one lock, but seven locks, deep within the cathedral. There are seven keys held by seven high-ranking officials of the church as well as the state. All seven must come together in order to gain access to the crown. It is very rare indeed; only happening 9 times during the 20th century."
The announcement of the new coin may be found here.