Title: Duke Wen of Jin
Content: Father: Duke Xian of Jin ; Stepmother: Li Ji ; Brother: Shensheng, Hereditary Duke of Jin / Xiqi, Duke of Jin / Duke Hui of Jin ; Nephew: Duke Huai of Jin 
Title: Duke Wen of Jin
Content:  Duke Wen of Jin (697–628BC), born Chong'er (literally "Double Ears"), was a scion of the royal house of Jin during the Spring and Autumn Period of Chinese history. He famously endured a long period of exile from his realm before finally being restored to power (r.636–628BC) and rapidly leading Jin to hegemony over the other Chinese states of his time. He is a figure in numerous Chinese legends, including those about his loyal courtier Jie Zhitui, whose death is said to have inspired China's Cold Food and Qingming Festivals.
Title: Duke Wen of Jin
Content:  Huan （驩）. Born by Bi Ji (逼姞). He succeeded his father and was known as Duke Xiang of Jin. He was regarded as a good successor as he defeated Qin and Di, but died too early in 621 BC. His son became Duke Ling of Jin, and Duke Dao of Jin was the grandson of his another son named Jie. Bo Ji (伯姬). Also born by Bi Ji (逼姞). She was married to Zhao Cui (趙衰), and was praised highly for returning the wifehood to the first wife Shu Wei (叔隗), thereby making herself a concubine. She bore three sons named Zhao Yingqi (趙嬰齊), Zhao Tong (趙同) and Zhao 
Title: Duke Wen of Qin
Content:  Duke Wen reigned for 50 years from 765 until 716 BC. His son, the crown prince, died before him in 718 BC and was given the posthumous title Duke Jing (秦竫公). Duke Wen died in 716 BC and was succeeded by his grandson Duke Xian of Qin.
Title: Jin (Chinese state)
Content:  which ended with the enthronement of Duke Hui of Jin (650-637). In 646BC, Duke Hui was captured by Qin and restored as a vassal. Another son of Duke Xian was Duke Wen of Jin (636-628), who spent 19 years exile in various courts. He came to the throne in 636 escorted by the troops of his father-in-law, Duke Mu of Qin. Duke Wen quickly established himself as an independent ruler by driving the Di barbarians west of the Yellow River. In 635BC he supported King Xiang of Zhou against a rival and was rewarded with lands near the royal capital. In 633BC, he confronted the rising 
Title: Duke Wen of Qi
Content:  Duke Wen of Qi (died 804 BC) was from 815 to 804 BC the tenth recorded ruler of the State of Qi during the Western Zhou Dynasty of ancient China. His personal name was Lü Chi (呂赤), ancestral name Jiang (姜), and Duke Wen was his posthumous title. Duke Wen's father Duke Li of Qi was a despotic ruler, and in 816 BC the people of Qi rebelled and tried to make the son of Duke Hu of Qi, Duke Li's grand-uncle, the new ruler. Duke Li was killed by the rebels, but Duke Hu's son also died in the fighting. Subsequently, Duke Wen ascended the throne, and executed 70 people who were responsible for his father's death. Duke Wen reigned for 12 years and died in 804 BC. He was succeeded by his son, Duke Cheng of Qi.
Title: Duke Wen of Jin
Content:  of Jin. Le (Yue?) (樂). Born by Chen Ying （辰嬴） from the State of Qin. He was initially sent to the State of Chen to avoid the probable conflict among his brothers. When Duke Xiang died, another noble minister, Hu Shegu (狐射姑), wanted to make Le the duke and secretly fetched him from Chen. However, he was ambushed and killed on the way by fellows led by Gongsun Chujiu, one of the men of Zhao Dun. Heitun (黑臀). Born by Zhou Nü (周女). He was initially sent to Zhou. When Duke Ling was murdered, he succeeded the throne and became Duke Cheng of Jin. He died in 600 BC.
Title: Duke Xiang of Jin
Content:  Duke Xiang of Jin (, died 621 BC) was from 627 to 621 BC the ruler of the State of Jin, a major power during the Spring and Autumn period of ancient China. His ancestral name was Ji, given name Huan, and Duke Xiang was his posthumous title. He succeeded his father Duke Wen of Jin, who was the Hegemon of China.
Title: Duke Xuan of Wey
Content:  Jin was one of the sons of Duke Zhuang I of Wey and a younger brother of Wan (Duke Huan of Wey). In 719 BC, Duke Huan was assassinated by his younger brother Zhouxu, who ruled for less than a year before he too was killed in a plot orchestrated by Shi Que and the ruler of Chen. Jin was installed as the next ruler and became known by his temple name Duke Xuan in Chinese historiography. Duke Xuan had a son named Jizi with his deceased father's concubine Yi Jiang. When Jizi became the "Noble Son of the Right", a girl named Xuan Jiang from the state of Qi was selected to be his wife. Since Xuan Jiang was pretty, Duke Xuan took her 
Title: Duke Cheng of Jin
Content:  Duke Cheng of Jin (, died 600 BC) was from 606 to 600 BC the ruler of the State of Jin, a major power during the Spring and Autumn period of ancient China. His ancestral name was Ji, given name Heitun, and Duke Cheng was his posthumous title. He was the youngest son of Duke Wen of Jin, and succeeded his nephew Duke Ling of Jin, when Zhao Dun and Zhao Chuan killed Duke Ling and installed Heitun on the throne. During the seven years of Duke Cheng's reign Jin attacked the states of Zheng, Chu, Qin, and Chen. Duke Cheng died in 600 BC and was succeeded by his son Duke Jing of Jin.

Question: Who is the father of Duke Wen of Jin?
Answer: Duke Xian of Jin.