Wen Jiang

In 709 BC, during the reign of her father Duke Xi of Qi, Wen Jiang married Duke Huan of Lu, who had ascended the throne of the neighbouring State of Lu in 712 BC. Three years later, Wen Jiang gave birth to a boy. The boy had the same birthday as his father, therefore he was given the name Tong, meaning "the same", and was made the Crown Prince of Lu.
In 698 BC Wen Jiang's father Duke Xi of Qi died and was succeeded by his son Duke Xiang of Qi. Before her marriage to Duke Huan of Lu, Wen Jiang and her older half-brother Duke Xiang had had an incestuous affair.
In 694 BC, Wen Jiang and her husband Duke Huan visited her home state of Qi, and Wen Jiang and Duke Xiang renewed their sexual liaison. When Duke Huan found out about their relationship, Duke Xiang ordered his half brother Prince Pengsheng to murder Duke Huan when he was drunk.