Denier - Boleslaus I the Cruel

Boleslaus I came to power in 935 by ordering the assassination of his brother, Wenceslaus — later canonized as the patron saint of Bohemia. The political need to assert dynastic legitimacy and economic control over Bohemia's trade routes almost certainly drove the early development of a native coinage under his rule, breaking dependence on imported Carolingian and Ottonian silver.

Cach 12 sits among the earliest attempts to establish a coherent Bohemian monetary identity, and attribution to specific years within the 935–972 window remains contested in the literature.