The published correspondence reveals the dimension of cooperation and the community of dynastic, political, cultural, and religious interests between the House of Vasa and the House of Austria. It provides the basis for analyzing mutual relations in terms of affinity, emulation, and rivalry. Editing the letters creates a kind of catalog showcasing the role and identity of the Vasas in the extensive European cultural and political context and can serve as a starting point for further studies. One of the most important instruments through which we can observe and analyze these processes is the letters exchanged between members of both dynasties. Royal letters with signatures, seals, and their content are a lasting testament to the presence and role of Poland in European culture in the early modern era.

Research financed by the Minister for Science and Higher Education through the National Programme for the Development of Humanities No. 12H 11 0017 80