Here's something I read recently about Cao Zhi's literary works...
Cao Zhi, along with his brothers Cao Xiong and Cao Zhang were summoned to the capital by their eldest brother Cao Pi, who by then had usurped the throne from Emperor Xian. Whilst staying at the capital, Cao Zhang died for no apparent reason, and Cao Xiong and Zhi were separated in the process...
Amidst the confusion, Cao Zhi wrote one of his most famous literary work (I think it was called Tribute to the Prince of White Jade or something) detailing his emotions during the confusion...
However, that is besides the point. What I am getting at is this:
After Cao Zhi, and Cao Chong (who died early), Cao Zhang would be Cao Pi's main competitor and threat to his legitimacy to the Wei Throne. Could it be possible that Cao Zhang was assassinated (poisoned?) in order to remove such a potential threat?



