In the city, there are canals and other waterways, markets, and this Square commemorating the French. The French occupied Ljubljana from 1809-1813; then the area came under Austrian control. See www.ljubljana.si/en/ljubljana/history/18th-19th/default. There you will find more on Ljubljana in the 18th-19th Centuries.
Napoleon is well respected here, and the French are seen as less exploitative than other occupiers. See www.ijs.si/slo/ljubljana/ for more on Ljubljana.
The Jewish population was small by 1919, and they joined with the Jewish community in Zagreb, Croatia. Their history in Slovenia dates from Roman days. See www.jewishvirtuallibrary.org/jsource/vjw/slovenia. Do look up Jewish history and culture in Slovenia and the other Balkan countries. The populations were decimated in World War II in many places. Renewals are happening, though, and the European Jewish Press cited a specific annual day of celebration of Jewish culture, held in Ljubljana this year. See www.ejpress.org/article/news/10772.