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
Meissen porcelain At the same time, Ehrenfried Walther von Tschirnhaus, a mathematician and scientist, experimented with the manufacture of glass, trying to make porcelain as well. Tschirnhaus supervised Böttger and by 1707 Böttger reluctantly started to help in the experiments by Tschirnhaus. When Tschirnhaus suddenly died, the recipe apparently was handed over to Böttger, who within one week announced to the King that he could make porcelain. Böttger refined the formula and with some Dutch co-workers, experienced in firing and painting tiles, the stage was set for the manufacturing of porcelain. In 1709, the King established the "Royal-Polish and Electoral-Saxon Porcelain Manufactory"