The author of the study analyses the conflicts between the nobility that resided in Trenčín (Trencsén, Trentschin) castle and the burghers living in the town of Trenčín. The conflicts were mainly based on economic issues such as the census, town tolls and fishing fees. Those had to be discussed and approved by the highest authorities – the royal council – or by the royal court. Despite all the problems, the conflicts were not insurmountable and thus the nobility cooperated with the town over certain issues.