POI's creator (Voyajo Team)
Kreva Castle is the ruins of a major fortified residence of Grand Dukes Gediminas and Algirdas in Kreva village, Belarus. Algirdas's brother Kęstutis was imprisoned and murdered in Kreva Castle in 1382. The Act of Krewo, the first step towards the Commonwealth of Poland-Lithuania, was signed in the (...) (from Wikipedia)