Denier - Boleslaus II the Pious

Boleslaus II secured the founding of the Prague bishopric in 973, finally giving Bohemia an ecclesiastical structure independent of Regensburg — a political achievement that reshaped the kingdom's relationship with the Holy Roman Empire. Coinage under his rule reflects this transitional moment, drawing on Carolingian denier prototypes while slowly absorbing local Bohemian idiom.

Cach 136 is among the more precisely attributed types in the series, though die linkage studies by Czech numismatists have shown considerable variation within the type grouping.