Grodno/Hrodna Region (Belarusian: Гродзенская вобласць, Hrodzienskaja vobłasć; Russian: Гродненская область, Grodnenskaya oblast; Polish: Obwód grodzieński) is one of the regions of Belarus. It is located in the northwestern part of the country.The capital Grodno, is the biggest city of the region. It lies on the Neman River. Grodno's existence is attested to from 1127. Two castles dating from the 14th - 18th centuries are located here on the steep right bank of the Nemen.