Jurisics Castle is the reason Kőszeg is on the map. In August 1532, Nikola Jurišić commanded a garrison of around 700–800 soldiers here — many of them civilians pressed into service — against the 120,000-strong Ottoman army of Suleiman the Magnificent. The defenders held out for 25 days, long enough for the campaigning season to end and Suleiman to abandon his march on Vienna. It is one of the most consequential small battles in European history.
The castle itself is an elegant late-Gothic and Renaissance structure built around a central courtyard. It was extensively restored in the 20th century and today houses the Jurisics Castle Museum, which covers the siege in detail with weapons, armour, maps, and period documents. The castle is the obvious starting point for any visit to Kőszeg.
story: > When Suleiman's emissary arrived on 28 August 1532 to demand surrender, Jurišić stalled for time with negotiations. The Ottomans, believing they had a deal, briefly lowered their flag over a captured tower — then Jurišić's men drove them back off it. The sultan, furious but also running out of time, agreed to a face-saving withdrawal that left the castle technically "surrendered" but never occupied. Kőszeg had held.