Meissen and the House of Wettin in 1089. In 1015 Meissen was besieged by the Poles led by future King Mieszko II. In 1241 the city was attacked in the Mongol raid on Meissen. The small Mongol force under Orda Khan defeated the city's defenders and much of the city was destroyed. The Mongols withdrew from Germany after the death of Ögedei Khan, sparing the region from further destruction. The city was at the forefront of the Ostsiedlung, or intensive German settlement of the rural Slavic lands east of the Elbe, and its reception of city rights dates to 1332. The
Porcelain the French Jesuit father Francois Xavier d'Entrecolles and soon published in the "Lettres édifiantes et curieuses de Chine par des missionnaires jésuites". The secrets, which d'Entrecolles read about and witnessed in China, were now known and began seeing use in Europe. Von Tschirnhaus and Johann Friedrich Böttger were employed by Augustus II the Strong and worked at Dresden and Meissen in the German state of Saxony. Tschirnhaus had a wide knowledge of science and had been involved in the European quest to perfect porcelain manufacture when, in 1705, Böttger was appointed to assist him in this task. Böttger had originally