In the past, after the death of a vassal, his son had to rush to Beijing to accept the knighthood of the Zhou Emperor after the succession and funeral service, so as to gain legal status. In the eighth year of King Huan of Zhou (in the 11th year of Lu Yingong, 7 12 BC), Lu Yingong, the brother of Lu Huangong, became king on his own, and did not knighthood him. Since then, the system of conferring governors by the Zhou Emperor has been destroyed.