The first extensive description of traditional tracht in the different regions was given by the Bavarian official Joseph von Hazzi (1768–1845). A comprehensive description of Bavarian national costumes was published in 1830 by the archivist Felix Joseph von Lipowsky. A parade of traditional costumes took place in 1835 at Oktoberfest, to celebrate the silver wedding anniversary of King Ludwig I of Bavaria and Queen Therese. Under his successor Maximilian II, traditional costumes were officially recognised as clothing suitable for wearing at the royal court. The king himself included officials wearing tracht in his court ceremonies and wrote in 1849 that he considered the wearing of traditional dress of "great importance" for national sentiment.