According to "Biographies of the Domain Kings": On the eighth day of the first lunar month of the sixth year of Emperor Jing's reign, the Emperor summoned King Yong'an to have an audience with him in Weiyang Palace. He stayed in the emperor's palace all night without leaving. The next day, the emperor was absent from court for the first time in six years since he ascended the throne. At Chenshi, news came from the palace that King Yong'an had died. He died at the age of thirty-seven.
Although there are only a few words, they are thought-provoking.
Conception: