John Zápolya
In his old age, Łaski's partiality for his nephew, Hieronymus Jaroslaw Łaski, led him to support the candidature of John Zápolya, the protégé of the Turks, for the Hungarian crown so vehemently against the Habsburgs that Clement VII excommunicated him, and the shock of this disgrace was the cause of his sudden death in 1531.