nicholas kőszegi did not attend the prelates' meeting at apostag in july 1318, and the subsequent aforementioned diet. he issued his charters in szombathely from april to july. by that time, charles confiscated the castle of győr from the diocese and handed over to paul nagymartoni, who was appointed "ispán" of győr county. it is presumable that charles took into account the fort's strategic importance against matthew csák and its bishop's disloyal and rebellious kinship, when made the decision. kőszegi protested against the step at the papal court, without success. when andrew kőszegi rebelled against charles for the second time in the first half of 1319, royal troops seized the kőszegis' six fortresses within month, effectively destroying their oligarchic dominion. nicholas kőszegi did not join his nephew's failed attempt, and remained a partisan of charles, and interrupted every relationship with his family and their aspirations. he attended the diet at székesfehérvár in november 1320. he regained the castle of győr by then. he spent months in the capital temesvár (present-day timișoara, romania) in the following years; for instance, he assisted the consecration of csanád telegdi there in january 1323.