Zakroczym is a town in the Masovian Voivodeship, Poland. The Vistula River flows through the town. Zakroczym has a long and rich history: in the Kingdom of Poland and the Polish–Lithuanian Commonwealt

Mazovia or Masovia is a historical region in mid-north-eastern Poland. It spans the North European Plain, roughly between Łódź and Białystok, with Warsaw being the largest city and Płock being the cap