sentences:  They included the Palatine Michael Ország, Jan Jiskra, Jan Haugwitz, Balázs Magyar, Pál Kinizsi, Nicholaus Ujlaki Ban of Macsó (Mačva), and Peter Sobi Ban of Bosnia-Croatia-Dalmatia, with the latter-most dying in the assault.Before the siege began, Matthias offered Švehla the chance to return to his service in exchange for an unconditional surrender on all grounds.After a refusal, he immediately began the siege and the cannon firing despite the harsh winter conditions.