Kaifeng , formerly known as Bianliang (汴梁; Wade-Giles: Pien-liang), is a prefecture-level city in eastern Henan province, People's Republic of China. Located along the southern bank of the Yellow River, it borders the provincial capital of Zhengzhou to the west, Xinxiang to the northwest, Shangqiu to the east, Zhoukou to the southeast, Xuchang to the southwest, and the province of Shandong to the northeast.