Mława is a town in north-central Poland with 30,957 inhabitants in 2012. It is the capital of the Mława County. The town is situated in the Masovian Voivodeship, previously it was part of the Ciechanów Voivodeship.
During the invasion of Poland in 1939, the battle of Mława was fought to the north of the city.
Wikipedia https://en.wikipedia.org/wiki/Mława
Coordinates 53°6'41.433" N 20°22'55.245" E