1 Groschen - John V Thurzo

John V Thurzo held the bishopric of Breslau from 1506 to 1520, appointed through the influence of the Fugger banking dynasty with whom his family was deeply intertwined — the Thurzos and Fuggers jointly controlled much of Central European copper and silver mining at the time. That connection to raw metal supply made episcopal coinage under his name a practical extension of a broader commercial empire.

The 1506–1507 date range suggests production confined to his first two years in office, before Breslau's minting activity shifted under subsequent arrangements with the Jagiellonian crown.