At the end Duke Xiang was himself murdered by his cousin, Lü Wuzhi, who subsequently usurped the Qi throne.
[1][2][3] After the death of Duke Huan of Lu, Wen Jiang stayed in Qi and the incestuous relationship between the siblings continued.
Duke Ai was boiled to death by King Yi of Zhou after being slandered by the Marquis of Ji.
[1][2] In 693 BC, Qi attacked the state of Ji, taking the cities of Ping, Zi, and Wu and expelling their residents.
The Marquis of Ji left in such a haste that he did not even bury his wife, a princess from the state of Lu, who had recently died.