After seizing Tây Đô citadel and marching onward to attack Ninh Bình, on 20/5/1545, Dương Chấp Nhất invited Kim to visit his military camp.
After conquering Tây Đô fortress and marching towards Ninh Bình on May 20, 1545, Dương Chấp Nhất invited Kim to inspect his military operations from his camp.