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
Imperial Porcelain Factory, Saint Petersburg Imperial Porcelain Factory, Saint Petersburg The Imperial Porcelain Factory (), also known as the Imperial Porcelain Manufactory (abbreviated as IPM), is a producer of hand-painted ceramics in Saint Petersburg, Russia. It was established by Dmitry Ivanovich Vinogradov in 1744 and was supported by the Russian tsars since Empress Elizabeth. Many still refer to the factory by its well-known former name, the Lomonosov Porcelain Factory. Attempts to reveal the secret of hard paste true porcelain-making had expanded to Russia since the visit of Peter the Great to Saxony in 1718; there, he saw Meissen porcelain at the Dresden court. Dmitry Ivanovich