Płock, officially the Princely Capital City of Płock, is a city in central Poland, on the Vistula river, in the Masovian Voivodeship. According to the data provided by GUS on 31 December 2021, there were 116,962 inhabitants in the city.
Płock is a seat of the county in the west of the Masovian Voivodeship. From 1079 to 1138 it was the princely capital of Poland. From Wikipedia
