Denier - Boleslaus II the Pious

Boleslaus II consolidated Bohemian Christianity with unusual speed — his reign saw the founding of the Prague bishopric in 973 and the brutal elimination of the rival Slavník dynasty in 995, effectively unifying Bohemian coinage under a single political authority. The deniers issued across his three-decade reign reflect that consolidation, with Cach 122 representing one of several distinct die groupings scholars have used to sequence his issues chronologically.

Prague's early mint operated under direct ducal control, distinguishing Bohemia from contemporaneous German minting arrangements where episcopal authorities frequently held striking rights.