Allied with Maximilian II, Holy Roman Emperor, and the Székelys, Bekes organized two rebellions against Báthory, but was defeated.
Bekes was treasurer for John II Sigismund Zápolya, King of Hungary (died 1571), and gained considerable power and favor with him.
[1] However, the Hungarian nobles did not honor the will and elected Stephen Báthory as their voivode while Bekes was away on a diplomatic mission in the court of Maximilian II, Holy Roman Emperor.
[7] During the Danzig rebellion, Bekes commanded Hungarian troops, sent to assist Báthory in establishing his control over the Commonwealth, and gained special recognition for his defense of Elbląg (Ebling).
[1] His body was transported to Vilnius for burial, but none of the city's Christian cemeteries agreed to accept him because of his Unitarian faith.