The Battle of Prague, which occurred between 25 July and 1 November 1648 was the last action of the Thirty Years' War. While the negotiations for the Peace of Westphalia were proceeding, the Swedes took the opportunity to mount one last campaign into Bohemia. The main result, and probably the main aim, was to loot the fabulous art collection assembled in Prague Castle by Rudolf II, Holy Roman Emperor (1552–1612), the pick of which was taken down the Elbe in barges and shipped to Sweden.

Prague Castle is a castle complex in Prague, Czech Republic serving as the official residence and workplace of the president of the Czech Republic. Built in the 9th century, the castle has long served as the seat of power for kings of Bohemia, Holy Roman emperors, and presidents of Czechoslovakia. As such, the term "Prague Castle" or simply the "Castle" or "the Hrad" are often used as metonymy for the president and his staff and advisors. The Bohemian Crown Jewels are kept within a hidden room inside it.