Lü Zuan (; died 401), courtesy name Yongxu (永緒), formally Emperor Ling of (Later) Liang ((後)涼靈帝), was an emperor of the Di-led Later Liang dynasty of China. He was the oldest son of the founding emperor Lü Guang (Emperor Yiwu), but was not Lü Guang's rightful heir, as he was not born of Lü Guang's wife Princess Shi. After Lü Guang died around new year 400, however, he seized the throne from his younger brother Lü Shao in a coup. Lü Zuan was considered a capable general tactically, but not skilled in general strategy, and during his reign Later Liang's strength continued to be sapped, as it was during the late reign of Lü Guang, by attacks of rivals Northern Liang and Southern Liang. Despite this, Lü Zuan continued to occupy himself with hunting and other unimportant matters. In 401, he was assassinated by his cousin Lü Chao (呂超), who then supported his own older brother Lü Long as emperor. During Lü Guang's reign Lü Zuan was described as favoring exercises in archery, horsemanship, and hunting when he was young, when he was a university student at the Former Qin capital Chang'an during the reign of Fu Jiān, where he was not studious. When Former Qin collapsed in the midst of multiple rebellions in 384 and 385, Lü Zuan fled initially to Shanggui (上邽, in modern Tianshui, Gansu), and then to Guzang (姑臧, in modern Wuwei, Gansu), where his father had established Later Liang and placed his capital. The first actual historical reference to Lü Zuan was in 392, when he served as one of his father Lü Guang's generals in his campaign against Qifu Gangui, the prince of Western Qin, and Lü Zuan was unsuccessful in his attack on Qifu Gangui. In 397, Lü Guang, who had by then claimed imperial title, sent his son Lü Zuan (then referred to as the Duke of Taiyuan) and his brother Lü Yan (呂延) against Qifu Gangui, who had previously agreed to be a vassal and then changed his mind. Initially, Lü Zuan was successful, capturing the important city Jincheng (金城, in modern Lanzhou, Gansu), but after his uncle was defeated and killed in a trap laid by Qifu Gangui, Lü Zuan was forced to withdraw. Throughout the rest of Lü Guang's reign, Lü Zuan became the general that his father relied on the most. In 397, when the Xiongnu general Juqu