sentences:  This would have allowed him to cover the expenses of the Black Army stationed in Moravia and upper Silesia and the cost of transporting them home to Upper Hungary to defend it from the Polish army of John Albert.John Filipec, on the behalf of the new king, helped to convince Silesian Black Army leader John Haugwitz to return to duty in exchange for 100,000 forints.The Hungarian-Czech army of 18,000 met the Polish troops in December 1491 in the Battle of Eperjes (Prešov), which was a decisive victory for the Black Army.