There are three sources of surnames, one is from Lu, the other is from ancient ethnic minorities, and the third is from the Northern Wei Dynasty. The population is mainly distributed in Zhejiang Province, including Hangzhou, Ningbo, Jinhua, Lishui and Zhuji. There are many historical celebrities named Lou, mainly related to Lou Hu, a doctor of health, a native of Nanchang County, Lou Chang, a scholar from Yingzong to Pingping in the Northern Song Dynasty, and Lou Nian, a scholar from Jiading in the 16th year. Contemporary celebrities include Lou Yun, the vault king, Lou Nanquan, an academician of China Academy of Sciences, and Lou Danxia, an outstanding Chinese artist in the world.