John Jiskra of Brandýs

Following the Battle of Lipany Jiskra, together with other Hussite soldiers, joined the army of Emperor Sigismund of Luxembourg and fought against Turkish troops in the region of Belgrade.

King Albert's widow, Elizabeth of Luxembourg after the coronation of his son, Ladislaus the Posthumous at Székesfehérvár went to Győr in May 1440 and summoned Jiskra and his Czech mercenaries there as well.

Using Hussite tactics he occupied Lőcse (Levoča), Bártfa (Bardejov), Körmöcbánya (Kremnica), Selmecbánya (Banská Štiavnica), Eperjes (Prešov), Késmárk (Kežmarok) in a short time.

In the life of Elizabeth, Jiskra successfully defended Upper Hungary against the attacks of Wladyslaw and his allies, John and Nicolaus Perényi.

After the death of Elizabeth, who was willing to make peace with Wladyslaw, Jiskra remained on the hereditary king's side and made a pact with the occupied cities to secure Ladislaus' rule.

Wladyslaw gallantly saved his life when he helped escape the disguised Jiskra to Győr, from where he went to Vienna to the court of Frederick III, Holy Roman Emperor, to visit Ladislaus.

Kassa, Lőcse, Eperjes, Bártfa, Körmöcbánya, Selmecbánya and Zólyom remained in Jiskra possession and several smaller Czech bands left the country.

Although Jiskra lost his properties and forced to make peace after he was defeated in 1458 by Sebastian Rozgonyi and Ladislaus Hédervári, his fighting morale was renewed by the war between Matthias and Frederick III in 1461.

Jiskra married the niece of the palatine of Hungary, Michael Ország and continued to serve faithfully Matthias Corvinus in his campaigns.