Ostrołęka Voivodeship
Ostrołęka Voivodeship (Polish: województwo ostrołęckie) was a unit of administrative division and local government in Poland in the period 1975–1998. It was superseded by Masovian Voivodeship. Ostrołęka.
Ostrołęka Voivodeship (Polish: województwo ostrołęckie) was a unit of administrative division and local government in Poland in the period 1975–1998. It was superseded by Masovian Voivodeship. Ostrołęka.