Although the Prince of the Eastern Sea, Sima Yi, had not taken part in the Lu Song Palace Entry Case, his earlier favor and trust in Lu Song and the others had sown the seeds of today's upheaval. Sima Yi could not escape blame-
On the fourth day of the eleventh month, the yimao day, Huan Wen petitioned to demote the Prince of the Eastern Sea, Sima Yi, to a commoner. Naturally, Sima Yi could no longer go to his fief in the Eastern Sea, nor was it appropriate for him to remain in Jiankang. Huan Wen submitted: "A deposed man should be banished far away and must not be allowed to rule over the people. The Prince of the Eastern Sea should follow the precedent of Changyi and have a residence built in Wu Commandery." Empress Dowager Chongde decreed: "I cannot bear to make him a commoner. He may be granted the special favor of retaining his Wang rank." Huan Wen petitioned again: "He may be made Marquis of Haixi County." On the seventh, the wuwu day, an edict was issued, creating Sima Yi Duke of Haixi County and demoting his former empress, of the Yu clan, to the rank of wife. On the ninth, the gengshen day, the Duke of Haixi was relocated to Xichaili in Wu County. Diao Yi, Neishi of Wu Kingdom, was ordered to guard him, and Censor Gu Yun was also dispatched to keep watch over him. Deeply fearful of unforeseen disaster, Sima Yi, Duke of Haixi, thereafter devoted himself to drinking and indulged without restraint in music and women. Seeing that he accepted his humiliation, Huan Wen no longer considered him a concern.
Huan Wen had entered the capital twice within a single month, deposed an emperor, banished the Prince of Wuling, cultivated