Question: On what date did the child of Qian Liu die?

full_context: Document 1: Wang Yuanying: Wang Yuanying (王元膺) (892 – August 13, 913), courtesy name Changmei (昌美), né Wang Zongyi (王宗懿), named Wang Yuantan (王元坦) from 910 to 912, was a crown prince of the Chinese Five Dynasties and Ten Kingdoms period state Former Shu, during most of the reign of his father, the founding emperor Wang Jian (Emperor Taizu). He was killed during an uprising he started against the powerful official Tang Daoxi and posthumously demoted to commoner rank.
Document 2: Princess Dowager Guo: Prior to 363, Zhang Xuanjing's grandmother Princess Dowager Ma had been princess dowager, but after she died that year, Zhang Xuanjing honored Lady Guo as princess dowager. (She was only described as Zhang Chonghua's concubine and not as Zhang Xuanjing's mother, but there would be little reason for him to honor her as princess dowager if she were not his mother.) Because Zhang Xuanjing's uncle, the regent Zhang Tianxi, was acting dictatorially, she conspired with officials led by Zhang Qin (張欽) to kill Zhang Tianxi, but the news leaked, and Zhang Tianxi had Zhang Qin put to death. (This implies that Princess Dowager Guo was not put to death.) Zhang Xuanjing, in fear, offered to yield the throne to Zhang Tianxi, but Zhang Tianxi refused. However, a month later, he sent soldiers into the palace and assassinated the 13-year-old duke. He himself took the Jin-created title the Duke of Xiping, which his nephew had held. Princess Dowager Guo's fate was not mentioned.
Document 3: Qian Yuanguan: Qian Yuanguan (錢元瓘) (November 30, 887 – September 17, 941), born Qian Chuanguan (錢傳瓘), formally King Wenmu of Wuyue (吳越文穆王), courtesy name Mingbao (明寶), was the second king of the state of Wuyue, during the Five Dynasties and Ten Kingdoms period of China. During his reign, his kingdom was centred on modern Zhejiang. He ascended to the throne in 932, when his father Qian Liu (King Wusu) left the state in his hands, to 941. He was the father to all three of Wuyue's subsequent kings.
Document 4: Lady Chen (Wusu): Qian Liu died in 932, and Qian Chuanguan took over administration of the state (and changed his name to Qian Yuanguan), although for some time did not use the title of King of Wuyue but instead referred to himself by the military governor title (and, in succession, the Later Tang-bestowed titles of Prince of Wu and Prince of Yue) when reporting to Later Tang, to whom Wuyue was a vassal. (He would assume the king title only years after Lady Chen's death, in 937.) It was said that Qian Yuanguan was respectful and filially pious toward his mother. He also treated her family well, presenting them with many gifts, but never gave them offices on account of her. She died in the early "Qingtai" era (934-936) of the Later Tang emperor Li Congke and was posthumously created the Lady Dowager of Jin, with the posthumous name of "Zhaoyi" ("accomplished and benevolent").
Document 5: Wang Yanhan: Wang Yanhan (王延翰) (died January 14, 927), courtesy name Ziyi (子逸), was a ruler of the Chinese Five Dynasties and Ten Kingdoms period state Min. He ruled briefly after the death of his father Wang Shenzhi (Prince Zhongyi) without a regal title, but later declared himself king. Just two months after declaring himself king, he was overthrown and killed in a revolt by his adoptive brother Wang Yanbing and younger biological brother Wang Yanjun. Wang Yanjun took over the state thereafter.
Document 6: Lady Ma (Qian Yuanguan's wife): Lady Ma (馬夫人, personal name unknown) (890-November 28, 939), formally the Lady Gongmu of Wuyue (吳越國恭穆夫人), was a wife of Qian Yuanguan (King Wenmu) (né Qian Chuanguan, name changed to Qian Yuanguan upon his succession to the throne), the second king of the Chinese state Wuyue of the Five Dynasties and Ten Kingdoms period.
Document 7: Qian Hongzun: Qian Hongzun (錢弘僔) (925－June 7, 940), formally Heir Apparent Xiaoxian (孝獻世子, "the filial and wise heir apparent"), was an heir apparent to the throne of the Chinese Five Dynasties and Ten Kingdoms Period state Wuyue during most of the reign of his father Qian Yuanguan (né Qian Chuanguan, King Wenmu), but did not inherit the throne on account of his predeceasing his father.
Document 8: Xu Xinyue: Xu Xinyue (; 902?-August 1, 946), formally the Lady Renhui of Wuyue (吳越國仁惠夫人), was a concubine, possibly later a wife, of Qian Yuanguan (King Wenmu) (né Qian Chuanguan, name changed to Qian Yuanguan upon his succession to the throne), the second king of the Chinese state Wuyue of the Five Dynasties and Ten Kingdoms period, and the mother to his son and successor Qian Hongzuo (King Wenxian).
Document 9: Qing dynasty: In 1725 Yongzheng bestowed the hereditary title of Marquis on a descendant of the Ming dynasty Imperial family, Zhu Zhiliang, who received a salary from the Qing government and whose duty was to perform rituals at the Ming tombs, and was also inducted the Chinese Plain White Banner in the Eight Banners. Later the Qianlong Emperor bestowed the title Marquis of Extended Grace posthumously on Zhu Zhuliang in 1750, and the title passed on through twelve generations of Ming descendants until the end of the Qing dynasty.
Document 10: Li Congyan: Li Congyan (李從曮) (898 – November 26, 946), né Li Jiyan (李繼曮) (name changed 926), formally the Prince of Qi (岐王), was a son and the heir of Li Maozhen, the only ruler of the Chinese Five Dynasties and Ten Kingdoms period state Qi. After Li Maozhen submitted to Later Tang and died shortly after, he continued to control the former Qi territory, as a Later Tang vassal, and subsequently served as a general for both Later Tang and its successor state Later Jin.
Document 11: Liu Chuyu: Liu Chuyu was the oldest of six children of Emperor Xiaowu's wife Empress Wang Xianyuan, although her birth date is not known. During her father's reign, her father created her the Princess Shanyin and married her to He Ji (何戢), the son of his official He Yan (何偃). After her father's death in 464, her younger brother, also by Empress Wang, Liu Ziye became emperor (as Emperor Qianfei). She became one of the people who often attended him while he visited places outside the palace. On one occasion, she told him, "While our genders are different, we are born of the same father. However, you have more than 10,000 women in your palaces, and I only have one husband, and this is unfair." In response, Emperor Qianfei selected 30 young handsome men for her, calling them her "mianshou" (面首, literally meaning "prime faces"), for them to be her lovers. (From this point on in Chinese history, "mianshou" became a term for women's male lovers, often referring to lovers of honored women.) He also promoted her to the greater title of Princess Kuaiji.
Document 12: Gao Yanzong: Gao Yanzong was the fifth son of Gao Cheng, who was the heir of Eastern Wei's paramount general Gao Huan, and who took over the regency of Eastern Wei after Gao Huan's death in 547. Gao Yanzong's mother was Gao Cheng's concubine Lady Chen, who was previously a concubine of Yuan Dan (元湛) the Prince of Guangyang, but his birth year is not known in history. As Gao Cheng was assassinated by his servant Lan Jing (蘭京) in 549, Gao Yanzong was raised by Gao Cheng's younger brother Gao Yang, who seized the throne from Emperor Xiaojing of Eastern Wei in 550, establishing Northern Qi as its Emperor Wenxuan. Emperor Wenxuan was described as loving Gao Yanzong so much that even when Gao Yanzong was 11, he still had Gao Yanzong ride him for game. In or sometime before 555, Emperor Wenxuan asked Gao Yanzong what princely title he wanted, and Gao Yanzong responded, "I want to be the Prince of Chongtian (衝天, meaning, "rising to heaven")." The prime minister Yang Yin commented, "There is no such commandery on earth. I wish that he would be satisfied (安, "an") with virtues (德, "de")." Emperor Wenxuan thus created Gao Yanzong the Prince of Ande in 555.
Document 13: Princess Dowager Liu: Lady Liu gave birth to Zhang Tianxi in 346. That year, Zhang Jun died. Nothing is known about her life between that year and 363, when Zhang Tianxi seized the throne from his nephew Zhang Xuanjing (Duke Jingdao) and honored her as princess dowager. (The exact title he honored her with is disputed historically; "Zizhi Tongjian" gave it as "Taifei" (太妃, translate as princess dowager), while "Shiliuguo Chunqiu" gave it as "Taihou" (太后, translate as queen dowager or empress dowager).
Document 14: Yuan dynasty: Following the conquest of Dali in 1253, the former ruling Duan dynasty were appointed as governors-general, recognized as imperial officials by the Yuan, Ming, and Qing-era governments, principally in the province of Yunnan. Succession for the Yuan dynasty, however, was an intractable problem, later causing much strife and internal struggle. This emerged as early as the end of Kublai's reign. Kublai originally named his eldest son, Zhenjin, as the Crown Prince, but he died before Kublai in 1285. Thus, Zhenjin's third son, with the support of his mother Kökejin and the minister Bayan, succeeded the throne and ruled as Temür Khan, or Emperor Chengzong, from 1294 to 1307. Temür Khan decided to maintain and continue much of the work begun by his grandfather. He also made peace with the western Mongol khanates as well as neighboring countries such as Vietnam, which recognized his nominal suzerainty and paid tributes for a few decades. However, the corruption in the Yuan dynasty began during the reign of Temür Khan.
Document 15: Consort Dowager Cao: Xiao Kui was not initially considered Emperor Xuan's heir, as Emperor Xuan had an older son Xiao Liao (蕭嶚), who was initially his heir apparent. However, by the time that Emperor Xuan took the throne with Western Wei support in 555, Xiao Liao had already died, and so Xiao Kui, as the next son, was created crown prince. When Emperor Xuan died in 562, Xiao Kui succeeded to the throne (as Emperor Ming). He honored Emperor Xuan's wife Empress Wang as empress dowager and honored Consort Cao as consort dowager. Consort Dowager Cao died in the fall of that year.
ground_truth: 941
sub_queries: Qian Liu >> child Answer: Qian Yuanguan
On what date did Qian Yuanguan expire? Answer: 941