The pronunciation of the surname Luan is: luán, pronounced with the second tone.
It ranks 243rd in the ranking of common surnames. The surname Luan comes from the surname Ji. During the ancient Zhou Dynasty, Tang Shuyu, the younger brother of King Zhou Cheng, had a descendant named Bin. He was a prince of Jin and was enfeoffed in Luanyi, so he was called Luan Bin. Luan Bin's grandson Luan Zhi took the name of the town as his surname and called it Luan. It was passed down from generation to generation and finally became the origin of the Luan surname.
Extended information:
The Luan family came from the Jin Dynasty's royal family. In the incident of Qu Wo defeating Yi in "Zuo Zhuan", Luan Bin was mentioned as the first king of the Jin Dynasty. The concubine and grandson of Jin Jinghou assisted Uncle Qu Wo Heng. This background is relatively clear. Uncle Heng's grandson Quwo Wu Gong attacked Yi and captured the Marquis of Jin Ai. He wanted to recruit Luan Cheng, who was assisting the Marquis of Jin Ai, and offered him the position of Minister of Jin, but Luan Cheng refused. Luan Cheng means that if I abandon the principles of life and follow you, I will have my heart set on Aihou. Why do you want a loyal minister? Fight to the death in the end. Luan Cheng, Luan's uncle and Luan Bin should be related by blood, otherwise Quwo Wugong would not persuade Luan Cheng to surrender. However, the relationship between ancestors and grandsons is still the relationship between father and son, and Luan Cheng's descendants cannot be tested.
"Guoyu" said that Duke Wen of Jin received support from the major families in the country, including the Luan family, so the Luan family was still passed down. During the Jin Wengong period, during the Battle of Chengpu, Zhao Shuiqian gave up his generals, and the recommended person was Luan Zhi. Xian Zhi, a famous general of the Jin Dynasty, assisted him. This shows that Luan's status is not low. When it came to the Battle of Xiao, Luan Zhi led the peace, and Xian Zhen led the battle. There were fierce battles over the decision to send troops. The Battle of Xiao in "Zuo Zhuan" is a famous story, known to women and children, and it is unknown. Luan Zhi was loyal, good at diplomacy and strategic, but he tended to be conservative, so Zhao Shui called him "Zhen Shen".
The decline of the Luan family was due to the death of Luan Xiao, who was succeeded by Luan Ying. However, his biological mother, Fan Yang's sister Luan Qi, falsely accused him of rebellion. His uncle Fan Yang served as a witness, and his grandfather Fan Gai ordered Luan Ying to be expelled. Luan Ying fled to Qi State, and with the help of Duke Zhuang of Qi, she secretly returned to the feudal city of Quwo. This time, Luan Ying really rebelled, but this was no different than striking an egg against a stone. Luan Ying was defeated and killed, and his clan was destroyed except for Luan Yi. He fled to the Song Dynasty, which was known as the "Luan Ying Rebellion" in history, and the inheritance of the Luan family in the Jin Dynasty ended.
Reference: Baidu Encyclopedia - Luan surname