Srebrenik

Srebrenik's fortress crowns a steep height in the Majevica hills of northeastern Bosnia. It appears in a charter issued there by Ban Stjepan II to Ragusa in 1333, when the district belonged to Usora. Three decades later a Hungarian army suffered a costly defeat at the fortress, losing the royal seal among its spoils. Its commanding position made Srebrenik a much-contested stronghold on Bosnia's northern approaches.

The castle passed between Hungarian, Serbian and Bosnian rulers before the Ottoman advance reached Usora. After taking Srebrenik back from the Ottomans, King Matthias Corvinus established a banate centred on the fortress in 1464 and entrusted it to Nicholas of Ilok. The stronghold remained part of Hungary's frontier defences until the Ottomans captured it in the early sixteenth century.