Meanwhile, disappointed John Albert gathered an army at the eastern border of Hungary and attacked the vicinity of Kassa (Košice) and Tokaj, also in 1490. John Corvinus accepted Vladislaus as his feudal lord and helped him in his coronation (he personally handed the crown to him). Vladislaus married widowed Queen Beatrice in order to acquire her assets of 500,000 forints. 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.