Where is Kazimierz?

Kazimierz was an island where the historic Jewish quarter of Kraków, Poland was situated. Named after King Casimir the Great, who founded it in the 14th century, Kazimierz served as a thriving center of Jewish life for centuries. In the map above, it is the island to the left. During the time of my novels, Kazimierz was the capital of Poland. The capital later moved to Warsaw in 1596, and the country became known as the Polish-Lithuanian Commonwealth.  The northern and eastern tributaries of the Vistula that formed the border of Kazimierz were filled in at the end of the 1800's. The former riverbed was transformed into what is now Josef Dietla Street.