Abstract
The present study deals with the youth of Bolko IV of Opole who has not yet received much attention in historiography. Using a hitherto unknown source, the author points to the small role played by the Opole prince in Sigismund of Luxembourg‘s war against the Turks in 1392.
Keywords:
Bolko IV of Opole, Vladislav II of Opole, Zikmund of Luxembourg, Piast dynasty