The place of Luo's birth and date are a controversial question. One possibility was that he was from Taiyuan, and lived in the late Yuan Dynasty and early Ming Dynasty by the record of his contemporary, the playwright Jia Zhongming (賈仲明), who said that he had met him in 1364. Another possibility was that he was born in Dongping, the province of Shangdong, in about 1280 – 1360. Literary historians suggest other possibilities for his home, also including Hangzhou and Jiangnan.
According to Meng Fanren (孟繁仁), Luo can be identified in the pedigree of the Luo family, and Taiyuan is most likely his hometown. But, there are not his name in this pedigree, and Some people believe that pedigree of the Luo Family can't prove that Luo is the author of Three Kingdoms. Some people doubt that If Luo came from Taiyuan, why he had intimate knowledge of people life in Shangdong, and he had taken all his time and energy to write them not those people in Taiyuan, Shanxi. Some people believe that the source of Taiyuan statement, which was written by Jia Zhongming (賈仲明), is most likely wrong in handwritten copy. According to the recent research, there were two Luo Guanzhong (陈辽，Chen Liao), one is Drama artist who came from Taiyuan, another is author of Three Kingdoms who came from Dongping.
Recent research has suggested that his date of birth was between 1315-1318. But other souces state it was nearer to 1330.[which?]
The stories forming the bulk of Romance of the Three Kingdoms and Water Margin are thought to have been developed by many independent storytellers. Shi Nai'an is thought to be the first to assemble Water Margin into a unified work, and Luo subsequently brought it to the current form of 100 chapters. Luo is usually considered the author of Romance of the Three Kingdoms.