Tyrnau (Nagyszombat, Trnava) was a location of great importance in the Jesuit school network of the Kingdom of Hungary, which provided students with various levels of education, from primary to university studies. The country's premier Catholic school centre also played a very important role in the education of the noble and aristocratic families. The aim of this study is to outline and examine the high noble-born student body of the University and Gymnasium of Tyrnau, using the new school records available. In the paper I will try to reconstruct how the function of Tyrnau in the educational practices of the nobility changed over the decades and centuries, which families attended the institution, and through some case studies I will also discuss the role of the knowledge acquired in shaping later careers.