Węgrów ([ˈvɛŋɡruf]; Yiddish: ווענגעראָווע, romanized: Vengrov) is a town in eastern Poland with 12,796 inhabitants (2013), capital of Węgrów County in the Masovian Voivodeship. History. First mentioned in historical records in 1414, Węgrów received its city charter in 1441. Between 16th and 18th centuries it was an important centre for Reformation movements in Poland. It was a private town owned by various Polish nobles, including the Kiszka, Radziwiłł and Krasiński families, administratively located in the Podlaskie Voivodeship in the Lesser Poland Province of the Kingdom of Poland.
https://en.wikipedia.org/wiki/W%C4%99gr%C3%B3w