Matthew III Csák
According to historians Gyula Kristó and János Karácsonyi, Nicholas fought in the Battle of Rozgony on 15 June 1312, where the Aba dominion was annihilated. On 8 July 1312, he was a member of the king's inner council which convened in Sárospatak, a former centrum of the Abas' province. According to a royal charter, Nicholas moved to Buda by 1 August 1313, where, alongside Palatine James Borsa and Treasurer Dominic II Rátót, judged in the name of king over Judge royal John Csák, who betrayed Charles and became a partisan of his distant relative Matthew III Csák.