Li Yu (; 937 – 15 August 978), before 961 known as Li Congjia (), also known as Li Houzhu (; literally "Last Ruler Li" or "Last Lord Li"), was the third ruler of the Southern Tang state during imperial China's Five Dynasties and Ten Kingdoms period. He reigned from 961 until 976, when he was captured by the invading Song dynasty armies which annexed his kingdom. He died by poison on orders of Emperor Taizong of Song after 2 years as an exiled prisoner. Li Houzhu was an incompetent ruler. He was also a lyric poet during his era, specializing in the cí form. Family Parents Father: Li Jing Mother: Empress Guangmu (; d.965) of the Zhong clan () Consort and their respective issue(s) Queen Zhaohui (), of the Zhou clan (), personal name Ehuang () Li Zhongyu (; 958-994), Duke Qingyuan (), first son Li Zhongxuan (; 961-964), Prince Huaixian (), second son Queen Zhou the Younger (), of the Zhou clan () Baoyi, of the Huang clan () Gongren, of the Bao clan () Gongren, of the Zang clan () Early life In the same Chinese year Li Congjia was born, his grandfather Xu Zhigao, also known as Xu Gao (Li Bian) founded the state Qi (), renaming it Tang (known as the Southern Tang) 2 years later. When Li Congjia was 6, his father Li Jing became the next Southern Tang emperor. With Li Jing naming his younger brother Li Jingsui his heir apparent, his sixth eldest son Li Congjia seemed unlikely to ever succeed the throne. However, many of Li Congjia's brothers died very young, and after the death of the second eldest brother Li Hongmao () in 951, Li Congjia all of a sudden found himself right behind Li Hongji — the eldest brother — and uncle Li Jingsui in the succession line. Li Hongji, a withdrawn and troubled young man, resented his crown prince uncle, whom he saw as a political enemy standing in his way. He also disliked his younger brother Li Congjia, even though they shared the same biological mother, Empress Zhong. Fearing the possible results of this family enmity, Li Congjia tried hard to be inconspicuous and focused on the arts, including poetry, painting and music. He loved reading, a passion encouraged by his father, also an acclaimed poet. At the age of 17, Li Congjia married Zhou Ehuang, chancellor