Luo Guanzhong and Zhang Shicheng
Although very little reliable information exists about the life of the famous novelist Luo Guanzhong, some scholars surmise that Luo may have been a member of Zhang Shicheng's staff during the early days of Zhang's kingdom. Disappointed with Zhang after Zhang found an accommodation with the Mongol rulers. Luo turned to a literary career, writing his Romance of the Three Kingdoms. However, the scant historical evidence has been interpreted in various way, with arguments having been put in favor of Luo's being on the side of other participants of that period's wars as well.
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