Instead, according to a later charter issued by Stephen V, he invited "German" (Styrian) knights from Friedberg into his seat, Pölöske, Zala County, and took an oath of allegiance to Ottokar II of Bohemia, long-time enemy of the Árpád dynasty.
In those weeks, King Stephen resided in Vas County to reconcile his late father's old partisans, including Henry Kőszegi and the Geregye brothers, and appoint royal castellans to the border forts due to the threat of war with Bohemia.
[4] After the rebellion was crushed within days by late November, Nicholas escaped from Zala County and sought refuge in the court of Philip Türje, the Archbishop of Esztergom.
When the former rebellious lords, including Kőszegi returned from Bohemia to support the rule of the minor Ladislaus IV of Hungary, Nicholas was also pardoned and recovered Purbach from Panyit Miskolc.
Towards the end of his life, he lost the ownership of Pölöske under unknown circumstances to Nicholas Kőszegi, as his brother and heir, Arnold III tried unsuccessfully to regain the castle in the following year.