Berestia

Berestia (Берасцейшчына;, Bieraście, Berestje), is the part of Belarusian, Ukrainian, and Polish ethnic territory, bounded by the Bug River, Pripyat River, Yaselda River, and Narew (Narva) River, and a borderland between historical Podlachia (Podlasie) and the Land of Brest-Litovsk (ziemia brzeskolitewska) part of Polesia (Polesie).

Its main cities were Berestia, Bielsk, Drohiczyn, Kobryn and Kamyanyets.