Duke Zhuang II of Wey

Duke Zhuang of Wey (, died 478 BC) was a ruler of the Chinese state of Wey. He ruled the duchy between 480 BC until his death in 478 BC. His given name was Kuǎikùi .

Biography Kuaikui was the eldest son of Duke Ling of Wey. He was appointed the heir apparent to the throne, although he was born to a concubine. He was at odds with his Di mother Duchess Nan Zi . Later, he attempted to murder Nan Zi. The retainer Kuaikui tasked to carry out the murder failed in his attempt. So Kuaikui had to flee his father's anger. He was harboured by Zhao Jianzi , a powerful minister of Jin.

In 480 BC, Kuaikui successfully deposed his son in a coup and ascended the throne. Zhong You, one of the best known and most faithful disciples of Confucius, was killed in this incident. As duke, Kuaikui was so unpopular that many of his retainers attempted to overthrow him. He was then killed in Rongzhou by the angry Rong.

In media Kuaikui is played by Li Huan in the biographical fantasy adventure drama film Confucius.