Due in part to the initiative of Wroclaw President Rafał Dutkiewicz, the city was able to fund a memorial plaque as a tribute to polish King Jan Kazimierz. In January, this plaque was placed in the church Saint-Germain-des-Prés in Paris.
https://upwr.edu.pl/en/news/rectors_of_wroclaw_universities_in_paris-12.html