Ran Qiu (former 522-? ), the word Ziyou, commonly known as "You Ran", was honored as "Ranzi", a native of Lu (now Ran Ji Xian, Heze City, Shandong Province). Descendants of Zhou Wenwang's tenth son, Ran Jizai. A famous scholar and disciple of Confucius at the end of the Spring and Autumn Period. One of the seventy-two sages of Confucius was sacrificed by Confucianism. Famous for political affairs. Versatile, especially good at financial management, once served as a minister of Jijia.

In the first 484 years, Zuo resisted the invasion of the Qi army and took the lead, winning with the assault tactics of infantry holding spears, and took the opportunity to persuade Ji Kangzi to welcome Confucius back to exile for 14 years. Confucius severely criticized Ji for helping him reform the land tax and amass wealth. Ran Qiu is one of Confucius' most proud students. Under the guidance of Confucius, he gradually moved closer to benevolence and his temperament gradually improved.