Belsk Duży is a village in Grójec County, Masovian Voivodeship, in east-central Poland. It is the seat of the gmina (administrative district) called Gmina Belsk Duży.
History In the early modern period, a trade route connecting Warsaw and Kraków ran through the village. It was one of the busiest routes in Poland.
Notable people Jan Rządkowski (1860–1934), Polish general
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