Źródła z AGAD do dziejów układu polsko-szwedzkiego i ślubu księcia Jana wazy z Katarzyną Jagiellonką z 1562 roku

The marriage concluded in Vilnius in 1562 between John, Duke of the Finnland from the Hause of Vasa, and Katarzyna Jagiellonka, sister of the Polish King Sigismund Augustus, proved to be fateful for the history of Sweden and the Polish-Lithuanian Commonwealth. A son born from this marriage, the future King Sigismund III began Vasa dynasty in the Commonwealth. It is puzzling that little sources left to the same wedding and related events. The article summarizes a few references preserved in the archives of Polish and Lithuanian public and private provenance, which are preserved in the holdings of the Central Archives the Central Historical Records.