Grand Duchy of Lithuania also re-established the permanent capital of the Grand Duchy in Vilnius, presumably moving it from Trakai in 1323; some researchers, such as Maciej Stryjkowski, claim that Navahrudak was the capital of the 13th century state. Lithuania was in an ideal position to inherit the western and the southern parts of Kievan Rus'. While almost every other state around it had been plundered or defeated by the Mongols, the hordes stopped at the modern borders of Belarus, and the core territory of the Grand Duchy was left mostly untouched. The weak control of the Mongols over the areas they had conquered
History of the Jews in Lithuania "kahals" were not successful. The impoverished Jewish merchants, having no capital of their own, were compelled to borrow money from the nobility, from churches, congregations, monasteries, and various religious orders. Loans from the latter were usually for an unlimited period and were secured by mortgages on the real estate of the "kahal". The "kahals" thus became hopelessly indebted to the clergy and the nobility. In 1792 the Jewish population of Lithuania was estimated at 250,000 (as compared with 120,000 in 1569). The whole of the commerce and industries of Lithuania, now rapidly declining, was in the hands of the Jews.