Feng Xingxi (馮行襲) (died 31 July 910), courtesy name Zhengchen (正臣), formally Prince Zhongjing of Changle (長樂忠敬王), was a warlord late in the Chinese Tang dynasty who later became a subject of the succeeding Later Liang state. He was tall and strong and known as "Green Face Feng" for his green birthmark on his face.
Background
It is not known when Feng Xingxi was born, but it is known that he was from Wudang (武當, in modern Shiyan, Hubei), and that he was known in his home territory for his strategies and his bravery. At one point, he became an officer at Jun Prefecture (), which Wudang was part of. In or shortly before 884, there was an incident where the agrarian rebel leader Sun Xi () gathered several thousand people and prepared to attack Jun Prefecture. The prefect Lü Ye () was panicking, but Feng reacted by hiding the troops and then personally, without escort, going to see Sun, to state to him:
Sun was pleased and did not suspect Feng. Once Sun crossed the river, the Jun Prefecture soldiers all went to Sun, ostensibly to show respect. The soldiers that Feng had hidden then ambushed Sun, and Feng himself killed Sun and the few followers he had with him. His army, left north of the Han River, collapsed and fled. Following his success Feng also had Lü Ye expelled. When Liu Jurong () the military governor (Jiedushi) of Shannan East Circuit (山南東道, headquartered in modern Xiangyang, Hubei), which Jun Prefecture belonged to, reported this to then-reigning Emperor Xizong, who was then at Chengdu (the imperial capital Chang'an having fallen to the agrarian rebel Huang Chao at that time), Feng was commissioned as the prefect of Jun. Meanwhile, there were bandits to the west of Jun who frequently intercepted the tributes that the eastern circuits were submitting to Emperor Xizong at Chengdu. Feng attacked and killed them, to ensure that the tributes would properly reach Emperor Xizong. At one subsequent point, when Li Maozhen the military governor of Fengxiang Circuit (鳳翔, headquartered in modern Baoji, Shaanxi) sent his adoptive son Li Jizhen () to occupy Jin Prefecture (金州, in modern Ankang, Shaanxi), Feng attacked Li Jizhen and took over Jin. The emperor (either Emperor Xizong or his brother and successor Emperor Zhaozong) thereafter made the defender (防禦使, Fangyushi) of a new Zhaoxin Circuit () with its capital at Jin Prefecture.
As warlord in late Tang Dynasty
In 891, by which time the powerful eunuch Yang Fugong (who had helped Emperor Zhaozong become emperor after Emperor Xizong's death in 888) had a fall out with Emperor Zhaozong and started a rebellion against Emperor Zhaozong with his adoptive sons and nephews Yang Shouliang, Yang Shouzhong (), Yang Shouzhen (), and Yang Shouhou (), Yang Shouliang wanted to try to attack Chang'an (where Emperor Zhaozong was at) through Feng Xingxi's territory, but Feng repelled his attack. (The Yangs were subsequently defeated by Li Maozhen.)
In 898, the status of Zhaoxin Circuit was upgraded, as Feng was made a military governor.
in 901, after a plan by Emperor Zhaozong and the chancellor Cui Yin to slaughter the eunuchs was discovered, the eunuch Han Quanhui forcibly took Emperor Zhaozong to Li Maozhen's Fengxiang Circuit. Cui summoned the powerful warlord Zhu Quanzhong the military governor of Xuanwu Circuit (宣武, headquartered in modern Kaifeng, Henan) to Chang'an, and Zhu subsequently put Fengxiang's capital Fengxiang Municipality under siege. During the siege, Han sent some 20 eunuchs through Jin Prefecture, intending to have them head to the southeastern circuits to order the military governors there to attack Zhu. By this point, though, Feng (whose circuit had been renamed Rongzhao Circuit () had already sent his deputy military governor Lu Chongju () to Zhu to submit to him, and when the eunuchs got to Jin Prefecture, Feng executed them and delivered the edicts that Han issued in Emperor Zhaozong's name that the eunuchs were carrying to Zhu.
In 904, Feng was additionally appointed military governor of Wuding Circuit (武定, headquartered in modern Hanzhong, Shaanxi). While Zhu Quanzhong later attacked and conquered Shannan East Circuit (山南東道, headquartered in modern Xiangyang, Hubei) and Jingnan Circuit (荊南, headquartered in modern Jingzhou, Hubei), Feng Xingxi sent his son Feng Xu () to lead naval troops to Jun and Fang prefectures to gather with Zhu's troops.