Xu Keqiong (許可瓊) was a general of the Chinese Five Dynasties and Ten Kingdoms Period state Chu. When, in Chu's last years, the realm was torn in a civil war between Ma Xiguang and Ma Xi'e (Prince Gongxiao), Xu betrayed Ma Xiguang, leading to Ma Xi'e's victory. Background It is not known when Xu Keqiong was born. He was a son of the great Chu chancellor Xu Dexun. While it is not known when he began his military career, by 950, he had become the commander of the fleet because of prior accomplishments. Betrayal of Ma Xiguang As of 950, Chu was torn by a civil war, as then-prince Ma Xiguang was facing the challenge to his rule by his older brother Ma Xi'e the military governor (Jiedushi) of Wuping Circuit (武平, headquartered in modern Changde, Hunan). In late 950, Ma Xi'e's forces approached the capital Changsha, and Ma Xiguang stationed the fleet under Xu Keqiong's command to defend an attack on water, while having the cavalry commander Li Yanwen () and infantry commander Han Li () also taking their troops to defend other potential routes of attack. Soon, Zhu Jinzhong (朱進忠), a general under Ma Xi'e, arrived with Ma Xi'e's forward troops and camped with a mix of 7,000 Han and non-Han troops west of the Xiang River across from Changsha. Ma Xiguang greatly trusted Xu, and had the other generals serve under his command, believing Xu to be a faithful and disciplined general. The non-Han officer Peng Shigao (), who had long been thankful for Ma Xiguang's trust and had sworn to be willing to die for Ma Xiguang, advocated that he be allowed to take some men to circle around Zhu's troops and attack it from the rear while Xu did so from the front, believing that once Zhu's forward troops were defeated, Ma Xi'e would give up his campaign. Ma Xiguang was ready to follow Peng's advice, but Xu, whom Ma Xi'e had already secretly contacted and enticed with an offer that they would divide the kingdom among themselves, opposed (as he was ready to accept Ma Xi'e's offer), stating to Ma Xiguang, "Peng Shigao is of the same kind as the Meishan barbarians, so how can you trust him? I, Xu Keqiong, and my family have been serving as Chu generals for generations, and will surely not disappoint you. There is nothing Ma Xi'e can