In the Hradčany district is the world’s largest castle. It measures 1,870 feet long. The interior is an incredible 750,000 square feet. Prague Castle began in the late 9th century while Bořivoj I was the Duke of Bohemia from 867 until 889. It was extended several times over the centuries. Major expansions were commissioned by King Ottokar II of Bohemia (13th century), Holy Roman Emperor Charles IV (14th century), Vladislaus II of Hungary (1471 – 1516), Holy Roman Emperor Ferdinand I (16th century) and Empress Maria Theresa (mid-18th century). Prague Castle was partially destroyed during the Hussite Wars (early 15th century), a fire in 1541, the Second Defenestration of Prague and the subsequent Thirty Years Wars (first half of 17th century) plus the War of the Australian Succession (mid-18th century). The castle was also occupied by the Germans during World War II and the Communist Party of Czechoslovakia after the coup d’état in 1948. The Czech Republic was formed in 1993 when Václav Havel became the first president. This is the castle’s First Courtyard, built in 1765.