The present work deals with confirmations that have issued Bohemian kings and princes of Silesia to Bohemian or Silesian towns. The work is divided into five parts. The first deals with existing exploration and methodological inspiration that I subsequently used. The second chapter summarizes the findings regarding the process of confirmation documents - from motives of its release, through the process of the documents in the office during the procedure, to handing over the finished instrument beneficiaries and paying taxes. Then I deal with the various types of confirmations and also I discuss separately the observational charters. The third part is devoted confirmations for the Bohemian towns with regard to all documents which the royal towns received, published by Bohemian kings. The problems are discussed from the perspective of publishers and recipients, as well as the documents themselves (their content, form). The same shall apply also in the case of the fourth chapter, which deals with the same aspects of the Silesian towns and confirmations, which they were received. The final chapter summarizes the findings, which I reached on the previous pages. An important part of this thesis is a variety of reports and graphs to better perceive the immediate context and development trends. I also deal with...