ENThe case of the legal regulation of relations between ethnic groups who professed different religions described in the previous chapter should be supplemented by looking at how the Jews functioned among the Christians in east-central Europe. The Jews were the most numerous group of non-Christian denominations inhabiting the region. Despite the religiously motivated aversion of Christians towards them, they played an important role throughout the Middle Ages and the modern period in the economic and social life of the Polish-Lithuanian Commonwealth. How was it possible to reconcile these two tendencies — official hostility and practical cooperation — for hundreds of years in the Grand Duchy of Lithuania?. [From the publication]