王重陽
In Chinese accounts, there are a number of mentions about zhendu poisoning used in failed and successful assassinations, but because "zhen" eventually became a metaphor for any type of poisoning in general, it is not always clear if the bird-poison was actually employed in each case. Various hagiographic sources allege that Wang Chuyi, a disciple of Wang Chongyang, was said to have been immune to poison and to have survived after drinking liquor containing poison from the zhen bird.