In the middle of Qing Dynasty, Zhang Gonglan's ancestors moved to Jiujiang, Shuangliu and Chengdu (Longchi Shengping), and they had four sons, Ji Hui, Huang Ji, Qihe and Jidi, which were collectively called four great families. This began to multiply around Shuangliu in Chengdu for hundreds of years. Up to now, the population and families in all parts of the country are prosperous!