Wenceslaus II of Bohemia
In 1300, King Wenceslaus II of Bohemia issued the new royal mining code "" (also known as "Constitutiones Iuris Metallici Wenceslai II"). This was a legal document that specified all administrative as well as technical terms and conditions necessary for the operation of mines. Prague groschen were minted between 1300 and 1547/48.