Denier - Bolesław II the Generous Kraków mint

Bolesław II reclaimed the Polish ducal title — and eventually the royal crown, restored in 1076 after nearly a century's absence — partly through aggressive military campaigning that kept his treasury under constant strain. These deniers were struck at Kraków during a reign that ended in forced exile after his execution of Bishop Stanisław of Szczepanów in 1079, an act that turned the Polish church decisively against him and ultimately cost him the throne.