Pei Du (Chinese: 裴度; 765 – April 21, 839), courtesy name Zhongli (中立), posthumous name Duke Wenzhong of Jin (晉文忠公), was a Chinese politician and government official of the Tang dynasty, serving as a chancellor during the reigns of Emperor Xianzong, Emperor Muzong, Emperor Jingzong and Emperor Wenzong. Although Pei was a civilian official, he was also known for his military strategies, and he is best known for being in charge of the campaign against the warlord Wu Yuanji during Emperor Xianzong's reign.
Contents
Background
Pei Du was born in 765, during the reign of Emperor Daizong. His family was from Hedong (河東, in modern Yuncheng, Shanxi) and traced his ancestry back to a line of government officials dating back to the Han Dynasty, Jin Dynasty (266–420), Former Yan, Later Qin, and Northern Wei, although Pei Du's direct ancestors was not listed with governmental offices for several generations until his grandfather Pei Youlin (裴有鄰), who served as a county magistrate, and his father Pei Xu (裴漵) served as a county secretary general.
In 789, during the reign of Emperor Daizong's son Emperor Dezong, Pei Du passed the imperial examinations and the special examination for grand speech. He later further passed special examinations for those who could properly criticize the government. He was thereafter made the sheriff of Heyin County (河陰, in modern Luoyang, Henan), and thereafter was made an imperial censor with the title Jiancha Yushi (監察御史). At one point, he submitted a secret petition that criticized those who were powerful due to their associations with Emperor Dezong, and thus was sent out of the capital Chang'an to serve as an administrator at the Henan Municipality (河南, i.e., the Luoyang region) government. He later became an imperial archiver (起居舍人, Qiju Sheren).
During Emperor Xianzong's reign
In 811, during the reign of Emperor Dezong's grandson Emperor Xianzong, Pei Du was made Sifeng Yuanwailang (司封員外郎), a low-level official at the ministry of civil service affairs (吏部, Libu), and put in charge of drafting edicts. He was soon promoted to be Sifeng Langzhong (司封郎中), a supervisorial official at the ministry of civil service affairs.
In 812, after Tian Xing the military governor (Jiedushi) of Weibo Circuit (魏博, headquartered in modern Handan, Hebei) submitted his circuit to imperial orders (previously, under Tian Xing's predecessor Tian Ji'an and prior military governors, Weibo had been governed in a de facto independent manner from the imperial government), Emperor Xianzong sent Pei to Weibo to comfort Tian Xing and the soldiers and to give a large cash reward to the Weibo soldiers. It was said that while at Weibo, Pei often spoke of the ways of faithfulness to Tian Xing, and that Tian Xing was attentive to Pei's encouragement. After Pei returned from the mission to Weibo, he was made Zhongshu Sheren (中書舍人), a mid-level official at the legislative bureau of government (中書省, Zhongshu Sheng).
In 814, Pei was made deputy chief imperial censor (御史中丞, Yushi Zhongcheng). While serving in that office, there was an occasion in spring 815 when he interceded on behalf of the exiled official Liu Yuxi, who was set to be made the prefect of Bo Prefecture (播州, in modern Zunyi, Guizhou), pointing out that, as Liu Yuxi's friend Liu Zongyuan, who was also to be exiled and who had offered to go to Bo Prefecture in Liu Yuxi's stead, that Bo Prefecture was so remote that Liu Yuxi could not possibly take his mother with him, and further pointing out that Emperor Xianzong himself also still had to support his mother (Empress Dowager Wang). Emperor Xianzong thus made Liu Yuxi the prefect of the somewhat less remote Lian Prefecture (連州, in modern Qingyuan, Guangdong).
By that point, Emperor Xianzong was deeply involved in a campaign against the warlord Wu Yuanji, who controlled Zhangyi Circuit (彰義, headquartered in modern Zhumadian, Henan). He sent Pei to the front to observe the campaign. Upon return, Pei reported his belief that Wu could be defeated, and further commended the general Li Guangyan for his bravery and righteousness. When Li Guangyan subsequently often had victories against Zhangyi troops, Emperor Xianzong came to believe Pei to have good judgment of character.
During Emperor Muzong's reign
In 821, during the reign of Emperor Xianzong's son Emperor Muzong, Chengde and Lulong (盧龍, headquartered in modern Beijing) soldiers rebelled under the leadership of Wang Tingcou and Zhu Kerong, respectively, killing Tian Hongzheng (whom Emperor Muzong had transferred to Chengde) and imprisoning Zhang Hongjing (a former chancellor that Emperor Muzong had transferred to Lulong). Emperor Muzong put Pei Du in command of the overall operations against Chengde and Lulong, but soon effectively gave that responsibility to Du Shuliang (杜叔良) as Du was put in command of the armies trying to relieve Niu Yuanyi (牛元翼), the prefect of Shen Prefecture (深州, in modern Hengshui, Hebei), who was holding out against Wang. Further, it was said that the imperial scholar Yuan Zhen, who wanted to be chancellor, and the eunuch Wei Hongjian (魏弘簡), were apprehensive that if Pei were victorious, he would again be in charge of the government, and thus interfered with requests that Pei submitted to Emperor Muzong. When Pei submitted an accusation against Yuan and Wei, Emperor Muzong felt compelled to demote Wei and strip Yuan of his status as imperial scholar, but was said to continue to trust Yuan. Nevertheless, with the imperial forces paralyzed by their need to receive imperial approval on decisions the generals were making and unable to prevail over Wang and Zhu, despite having a large numerical advantage and despite the presence of Pei and capable generals Wu Chongyin and Li Guangyan. By 822, Emperor Muzong abandoned the campaign and commissioned Zhu, then Wang, as military governors of their circuits. (It was said that his doing so was also at Yuan's behest, as Yuan did not want to see Pei continue to wield military command.) Despite their receiving commissions, Zhu and Wang did not relent on their siege of Shen Prefecture. Pei sent them letters rebuking them, and Zhu subsequently withdrew. Wang continued his pressure on Niu, however, and Niu eventually had to fight his way out of the siege.)
After the campaign ended, Pei was initially made Sikong (司空, one of the Three Excellencies) and defender of Luoyang, continuing to carry the honorary chancellor title. After the advisorial officials submitted many petitions pointing out that Pei had both civilian and military talents and should not be left in a largely ceremonial position, Emperor Muzong did not change Pei's commission initially but ordered him to first report to Chang'an to meet the emperor before heading for Luoyang. While Pei was at Chang'an, he apologized for being unable to defeat Wang and Zhu. Meanwhile, around the same time, Liu Wu, who had been made the military governor of Zhaoyi Circuit (昭義, headquartered in modern Changzhi, Shanxi), had detained the imperial eunuch monitor Li Chengjie (李承偕) after Li Chengjie had disrespected him and further plotted with his subordinate Zhang Wen (張汶) to arrest him and replace him with Zhang. Pei suggested issuing an edict executing Li Chengjie, believing that such a move would regain Liu's faithfulness to the imperial government, but Emperor Muzong, as both he and his mother Empress Dowager Guo favored Li Chengjie, did not do so. Rather, he accepted Pei's alternative suggestion to order that Li Chengjie be exiled. Only after such an edict was issued did Liu release Li Chengjie, but thereafter Liu began to disobey imperial orders. Shortly after the incident involving Liu Wu, Pei was commissioned to serve as the military governor of Huainan Circuit. However, the advisorial officials again petitioned to keep Pei at the central government. Emperor Muzong thus kept Pei at the capital as chancellor and sent Wang Bo to Huainan instead.
During Emperor Jingzong's reign
In 824, by which time Emperor Muzong had died and been succeeded by Li Zhan (as Emperor Jingzong), Wang Tingcou, upon hearing the Niu Yuanyi, who had been serving as the military governor of Shannan East Circuit (山南東道, headquartered in modern Xiangfan, Hubei), had died, slaughtered Niu's family, which he had detained at Chengde. Emperor Jingzong, hearing reports of the Niu household being slaughtered, sighed and blamed the incident on the chancellors' lack of ability. The imperial scholar Wei Chuhou pointed out that Pei Du had great accomplishments but had been squeezed out of the chancellorship. Further, Emperor Jingzong saw that whenever Pei submitted reports, he did not list an honorary chancellor title among his titles. Wei blamed Li Fengji's machinations for this, and the chancellor Li Cheng also advised that Pei should be shown more respect. Emperor Jingzong thus conferred the honorary chancellor title on Pei, although he did not recall Pei at that time.
In winter 825, after Emperor Jingzong had sent several messengers to Shannan West's capital Xingyuan Municipality (興元) to confer with Pei and secretly asking him to request a trip to Chang'an to pay homage to the emperor, Pei did so. He arrived in Chang'an in spring 826, and, despite attacks Li Fengji and his partisans laid on Pei (including intimations that Pei had been prophesied to be emperor and was having designs on the throne), Pei was again made chancellor. Under Pei's advice, Emperor Jingzong abandoned his plans to visit Luoyang (after Pei pointed out the expenses it would take to repair the palaces at Luoyang and the palaces on the way from Chang'an to Luoyang). Meanwhile, at that time, both Wang Tingcou and Zhu Kerong were submitted impolite petitions that, on the surface, offered to send troops to help repair Luoyang's defenses, but were intending to threaten the imperial government, Emperor Jingzong, per Pei's advice, acted without undue alarm and simply declined their offers.
During Emperor Wenzong's reign
Around the new year 827, Emperor Jingzong was assassinated by the eunuch Su Zuoming (蘇佐明). The eunuch Liu Keming (劉克明) wanted to support Emperor Jingzong's brother Li Wu the Prince of Jiàng as emperor, but another faction of eunuchs, headed by Wang Shoucheng, Yang Chenghe (楊承和), Wei Congjian (魏從簡), and Liang Shouqian (梁守謙), killed Liu, Li Wu, and Liu's associates, and instead supported another brother of Emperor Jingzong's, Li Han the Prince of Jiāng (note different tone than Li Wu's title) as emperor (as Emperor Wenzong). Before Emperor Wenzong could formally take the throne, Pei served as regent for three days.
Meanwhile, around this time, Li Quanlüe (李全略) the military governor of Henghai Circuit (橫海, headquartered in modern Cangzhou, Hebei) had also died, and his son Li Tongjie tried to take control of the circuit. Emperor Wenzong tried to induce Li Tongjie not to do so by offering him the military governorship of Yanhai Circuit (兗海, headquartered in modern Jining, Shandong), but Li Tongjie refused. Emperor Wenzong ordered the military governors of the circuits around Henghai to attack Li Tongjie. Of those, Shi Xiancheng the military governor of Weibo was secretly in communication with Li Tongjie, as the two families had a marital relationship, but Pei, not knowing this, believed Shi to be dependable. Wei Chuhou, who was also chancellor by this point, however, told Shi's emissaries that he was aware of Shi's communications with Li Tongjie, and Shi thus did not dare to openly aid Li Tongjie.
In 829, when Li Deyu the governor of Zhexi Circuit (浙西, headquartered in modern Zhenjiang, Jiangsu) was recalled to serve as deputy minister of defense, Pei recommended Li Deyu to be chancellor, but due to the eunuchs' recommendations, another deputy minister, Li Zongmin, was made chancellor instead. Subsequently, by this point, Pei was also serving as the director of finances. His colleague Lu Sui, however, opined that chancellors should not also handle financial matters, pointing out the prior examples of Yang Guozhong, Yuan Zai, and Huangfu Bo. Pei thus resigned his post as director of finances, but remained as chancellor.
In 830, Pei, as he was old by this point, offered to resign his chancellorship. Emperor Wenzong, in response, made him Situ (司徒, also one of the Three Excellencies) and gave him the unusual chancellor title of Pingzhang Junguo Zhongshi (平章軍國重事), ordering him to report for duties only once every three or five days. Soon thereafter, however, as Li Zongmin resented Pei for having recommended Li Deyu over him, he had Pei sent out of the capital to serve as the military governor of Shannan East Circuit, carrying the honorary chancellor title of Shizhong (侍中). Once he reported to Shannan East Circuit, at his request, a large grazing range at Shannan East that was used to breed military horses, which was not yielding much results, was abolished, and the fields were returned to the farmers. In 834, he was made the defender of Luoyang. In 835, he was given the honorary chancellor title of Zhongshu Ling (中書令). Later that year, after a major outward clash of between the officials headed by Zheng Zhu and Li Xun and the powerful eunuchs, known as the Ganlu Incident, led to the deaths of four chancellors (Li Xun, Wang Ya, Jia Su, and Shu Yuanyu) and massive eunuch reprisals against those viewed as Zheng's and Li Xun's associates, Pei urged leniency, and it was said that some 10 families were spared because of his efforts.
Notes and references
Old Book of Tang, vol. 170.
New Book of Tang, vol. 173.
Zizhi Tongjian, vols. 239, 240, 241, 242, 243, 244, 245, 246.




