Question: Who is Chen Yuanyuan's father-in-law?

Knowledge 1: Chen Yuanyuan
Chen Yuanyuan (1624–1681) was a courtesan who lived during the late Ming and early Qing dynasties.She was the concubine of Wu Sangui, the Ming dynasty general who surrendered Shanhai Pass to the Manchu Qing dynasty, and later rebelled in the Revolt of the Three Feudatories.Chen's life and relationship to Wu later became the subject of a number of popular stories and legends, many of them focusing on her supposed role in Wu's fateful decision to defect to the Qing, thereby sealing the fate of the Ming dynasty. [SEP] Knowledge 2: Wu Sangui
Wu Sangui (courtesy name Changbai (長白) or Changbo (長伯); 1612 – 2 October 1678) was a Chinese military leader who played an instrumental role in the fall of the Ming dynasty and the establishment of the Qing dynasty in its place.In 1644, after the rebel leader Li Zicheng killed his father, the Ming general Wu Xiang, Wu Sangui allied with the Qing Prince Dorgon and allowed the Manchu army passage through the Shanhaiguan to suppress Li's rebellion.For his efforts in establishing the Qing dynasty, he was given a large fiefdom consisting of Yunnan and, later, Guizhou provinces, as well as the noble title "PrinceWho Pacifies the West".In 1674, instead of retiring from service, Wu decided to rebel against the Qing.In 1678, Wu declared himself the Emperor of China and the ruler of the Great Zhou, only to die within months.For a time, his grandson Wu Shifan succeeded him; however, the Kangxi Emperor of the Qing Dynasty eventually quelled the revolt.Wu Sangui is considered by traditional scholars as having been a traitor to both the Ming and the Qing dynasties.
Knowledge 1: Chen Yuanyuan
Chen Yuanyuan (1624–1681) was a courtesan who lived during the late Ming and early Qing dynasties.She was the concubine of Wu Sangui, the Ming dynasty general who surrendered Shanhai Pass to the Manchu Qing dynasty, and later rebelled in the Revolt of the Three Feudatories.Chen's life and relationship to Wu later became the subject of a number of popular stories and legends, many of them focusing on her supposed role in Wu's fateful decision to defect to the Qing, thereby sealing the fate of the Ming dynasty. [SEP] Knowledge 2: Duke Wen of Chen
Duke Wen of Chen (reigned 754 BC – died 745 BC) was the eleventh ruler of the ancient Chinese state of Chen during the early Spring and Autumn period.His given name was Yu (圉), and Wen was his posthumous name.Duke Wen succeeded his father Duke Ping of Chen, who died in 755 BC.He reigned for 10 years and died in 745 BC.He was succeeded by his son Bao, known as Duke Huan of Chen.When Duke Huan died in 707 BC, his younger brotherChen Tuo murdered Crown Prince Mian and usurped the throne of Chen.Chen Tuo was then killed by the army of the neighbouring State of Cai, which restored the throne to Duke Huan's younger son Yue, known as Duke Li of Chen.Duke Zhuang of the state of Wey married two princesses of Chen, Li Gui and her younger sister Dai Gui, who were likely daughters of Duke Wen of Chen.Dai Gui was the mother of Duke Huan of Wey.
Knowledge 1: Chen Yuanyuan
Chen Yuanyuan (1624–1681) was a courtesan who lived during the late Ming and early Qing dynasties.She was the concubine of Wu Sangui, the Ming dynasty general who surrendered Shanhai Pass to the Manchu Qing dynasty, and later rebelled in the Revolt of the Three Feudatories.Chen's life and relationship to Wu later became the subject of a number of popular stories and legends, many of them focusing on her supposed role in Wu's fateful decision to defect to the Qing, thereby sealing the fate of the Ming dynasty. [SEP] Knowledge 2: Duke Wu of Chen
Duke Wuya of Chen (reigned 795 BC – died 781 BC), given name Ling (靈), was the eighth ruler of the ancient Chinese state of Chen during the Western Zhou dynasty.Wu was his posthumous name.Duke Wu succeeded his father Duke Xi of Chen, who died in 796 BC.Duke Xi's reign coincided with that of King Xuan of Zhou.He reigned for 15 years and died in 781 BC, the year that King You, the last king of Western Zhou, ascended the throne.Duke Wu was succeeded by his son Yue, known as Duke Yi of Chen.Duke Yi died after only three years of reign, and was succeeded by his younger brother Xie, known as Duke Ping of Chen.

Answer: Wu Xiang