The present-day appearance of the Viennese Treasury is the result of a long developmental process which began in the 14th century. Back then, the secure vaults located beside the Hofburg’s Imperial Chapel were used to hold implements made of gold and silver, coins, precious stones and pieces of jewelry, as well as documents and insignia important to the House of Habsburg for the purpose of legally ensuring earthly power. Also kept were numerous relics that served as the ecclesiastical prerequisite for this power. The treasury's collection grew significantly during the 16th century, under the reign of Emperor Ferdinand I and later Rudolf II, who moved the treasures to a dedicated wing, known as the Kunsthaus. Since the 18th century, the Schatzkammer is located in the Alte Burg, and accessible from the Schweizerhof (Swiss Courtyard), the oldest inner court of the Hofburg.