Search for: [Subject = Poland] OR [Subject = Kingdom of Prussia] OR [Subject = international law] OR [Subject = international agreement] OR [Subject = Polska] OR [Subject = Królestwo Prus] OR [Subject = prawo międzynarodowe] OR [Subject = umowa międzynarodowa] OR [Title = Przymierze polsko\-pruskie] OR [Creator = Askenazy, Szymon \(1866\?\-1935\)]