Wikipedia
Radziwiłłówka
Radziwiłłówka is a village in the administrative district of Gmina Mielnik, within Siemiatycze County, Podlaskie Voivodeship, in north-eastern Poland, close to the border with Belarus. It lies approximately north of Mielnik, south-east of Siemiatycze, and south of the regional capital Białystok.