The story
Horní Planá was founded by monks from the Zlatá Koruna Monastery in the first half of the 14th century. In 1349, it was promoted to a market town by King Charles IV.
During the Hussite Wars in 1420, it was incorporated into the Český Krumlov estate, then held by the Rosenberg family. The Rosenbergs insignia were adopted in the town's coat of arms. The good location on the trade route from Bohemia to Austria and later the construction of the Schwarzenberg Canal and the railway had a significant influence on the town's development.
Until 1945, the local population predominantly consisted of ethnic Germans. In 1930, they made 98% of the population. In 1938, the town was annexed by Nazi Germany upon the 1938 Munich Agreement and incorporated into the Reichsgau Oberdonau. After World War II, it was restored to Czechoslovakia, while the remaining German-speaking population was expelled.
From Wikipedia’s article on Horní Planá, shared under CC BY-SA 4.0.5