[2] In c.December 194 BC,[3] when Liu Fei made an official visit to the capital, he and Emperor Hui of Han (his younger half-brother) both attended a feast put on by Empress Dowager Lü.
The empress dowager was greatly offended and instructed her servants to pour two cups of poisoned wine which were set on the table between the trio.
Empress Dowager Lü jumped up and slapped the second cup away from Emperor Hui, spilling it.
In the end, he was only able to leave the capital by offering to the Empress an entire commandery from his principality, to be the feudal estate of Princess Yuan of Lu.
Empress Dowager Lü, who greatly loved her daughter as well, was pleased and let Liu Fei return to his principality.