Yang Guozhong
Encyclopedia
Yang Guozhong (died July 15, 756), né Yang Zhao (楊釗), was an official of the Chinese
History of China
Chinese civilization originated in various regional centers along both the Yellow River and the Yangtze River valleys in the Neolithic era, but the Yellow River is said to be the Cradle of Chinese Civilization. With thousands of years of continuous history, China is one of the world's oldest...

 dynasty Tang Dynasty
Tang Dynasty
The Tang Dynasty was an imperial dynasty of China preceded by the Sui Dynasty and followed by the Five Dynasties and Ten Kingdoms Period. It was founded by the Li family, who seized power during the decline and collapse of the Sui Empire...

, serving as a chancellor late in the reign of Emperor Xuanzong
Emperor Xuanzong of Tang
Emperor Xuanzong of Tang , also commonly known as Emperor Ming of Tang , personal name Li Longji , known as Wu Longji from 690 to 705, was the seventh emperor of the Tang dynasty in China, reigning from 712 to 756. His reign of 43 years was the longest during the Tang Dynasty...

. His second cousin Consort Yang Yuhuan was then Emperor Xuanzong's favorite concubine, and it was through his relations with her that he managed to be initially noticed by Xuanzong.

Yang was a gambler and a wastrel, but keen with the political scene. In 752, Xuanzong appointed him chancellor succeeding Li Linfu
Li Linfu
Li Linfu , nickname Genu , formally the Duke of Jin , was an official of the Chinese dynasty Tang Dynasty, serving as a chancellor for 18 years , during the reign of Emperor Xuanzong—one of the longest terms of service for a chancellor in Tang history, and the longest during Xuanzong's reign.Li...

 owing to his skills in managing finances. He proved to be disastrously incompetent as chancellor, incurring the wrath of many, but remained one of Xuanzong's most trusted officials.

His conflict with An Lushan
An Lushan
An Lushan was a general who rebelled against the Tang Dynasty in China.His name was also transcribed into Chinese as Āluòshān or Gáluòshān ,...

, also a favorite official of Emperor Xuanzong's, eventually drove An into rebellion (known historically as the Anshi Rebellion). He then permitted the latter to capture the imperial capital Chang'an
Chang'an
Chang'an is an ancient capital of more than ten dynasties in Chinese history, today known as Xi'an. Chang'an literally means "Perpetual Peace" in Classical Chinese. During the short-lived Xin Dynasty, the city was renamed "Constant Peace" ; yet after its fall in AD 23, the old name was restored...

 by forcing Geshu Han
Geshu Han
Geshu Han , formally Prince Wumin of Xiping , was a general of the Chinese dynasty Tang Dynasty of Tuqishi extraction. He became a powerful general late in the reign of Emperor Xuanzong and in 756 became responsible for defending Tong Pass against the rebel forces of An Lushan...

, a general who was holding a favorable defensive position at the Tong Pass (潼關), to confront the rebel troops. As expected, the Tang forces were completely routed by Cui Qianyou's army. Emperor Xuanzong was forced to flee, and while in flight, Yang Guozhong, Consort Yang, and many of the Yang family were killed by the angry soldiers escorting Emperor Xuanzong because the army attributed the chaos to them.

Background

It is unknown when Yang Zhao was born. His family was from Pu Prefecture (蒲州, roughly modern Yuncheng, Shanxi
Shanxi
' is a province in Northern China. Its one-character abbreviation is "晋" , after the state of Jin that existed here during the Spring and Autumn Period....

) and traced its ancestry to the great Han Dynasty
Han Dynasty
The Han Dynasty was the second imperial dynasty of China, preceded by the Qin Dynasty and succeeded by the Three Kingdoms . It was founded by the rebel leader Liu Bang, known posthumously as Emperor Gaozu of Han. It was briefly interrupted by the Xin Dynasty of the former regent Wang Mang...

 official Yang Zhen (楊震), as well as officials of Later Yan
Later Yan
The Later Yan was a Murong-Xianbei state, located in modern day northeast China, during the era of Sixteen Kingdoms in China.All rulers of the Later Yan declared themselves "emperors". Later Yan fell to the Goguryeo dynasty.-Rulers of the Later Yan:...

, Northern Wei
Northern Wei
The Northern Wei Dynasty , also known as the Tuoba Wei , Later Wei , or Yuan Wei , was a dynasty which ruled northern China from 386 to 534 . It has been described as "part of an era of political turbulence and intense social and cultural change"...

, and Tang Dynasty
Tang Dynasty
The Tang Dynasty was an imperial dynasty of China preceded by the Sui Dynasty and followed by the Five Dynasties and Ten Kingdoms Period. It was founded by the Li family, who seized power during the decline and collapse of the Sui Empire...

's predecessor Sui Dynasty
Sui Dynasty
The Sui Dynasty was a powerful, but short-lived Imperial Chinese dynasty. Preceded by the Southern and Northern Dynasties, it ended nearly four centuries of division between rival regimes. It was followed by the Tang Dynasty....

. Yang Zhao's great-great-grandfather Yang Wang (楊汪) was an important official during Sui. His grandfather Yang Youliang (楊友諒) served as a county magistrate for Tang, and his father Yang Xun (楊珣) served as a military officer. His mother Lady Zhang was a sister of Wu Zetian
Wu Zetian
Wu Zetian , personal name Wu Zhao , often referred to as Tian Hou during the Tang Dynasty and Empress Consort Wu in later times, was the only woman in the history of China to assume the title of Empress Regnant...

's lovers Zhang Yizhi
Zhang Yizhi
Zhang Yizhi , formally the Duke of Heng , nickname Wulang , was an official of Wu Zetian's Zhou Dynasty who, along with his brother Zhang Changzong, became a lover of Wu Zetian and became very powerful late in her reign...

 and Zhang Changzong
Zhang Changzong
Zhang Changzong , formally the Duke of Ye , nickname Liulang , was an official of Wu Zetian's Zhou Dynasty who, along with his brother Zhang Yizhi, became a lover of Wu Zetian and became very powerful late in her reign...

.

Yang Zhao himself was said to lack knowledge and virtues. He was a heavy drinker and gambler, and was looked down by his own clan members. He, motivated by the slight, decided to join the army, and served in the army stationed at Yi Prefecture (益州, roughly modern Chengdu
Chengdu
Chengdu , formerly transliterated Chengtu, is the capital of Sichuan province in Southwest China. It holds sub-provincial administrative status...

, Sichuan
Sichuan
' , known formerly in the West by its postal map spellings of Szechwan or Szechuan is a province in Southwest China with its capital in Chengdu...

). For his military service, he was set to be promoted, but the secretary general of Yi Prefecture, Zhang Kuan (張寬), disliking him, initially refused to do so and in fact whipped him, but eventually he was made the magistrate of Xindu
Xindu District
新都区位于成都市北郊,居“天府之国”川西平原腹地,素有“天府明珠”和“香城”之称。全区幅员面积496平方公里,六分之五为平原,六分之一为浅丘。新都区现辖13镇(街道)、255个村(社区),全区总人口65万人。新都区是成都市科技·文化·旅游卫星城,在成都市总体规划中被确定为都市区,其中32.6平方公里为都市区 Xindu District is a district of Chengdu, the capital of Sichuan Province, China....

 County. After his three-year term of service was over, he did not save sufficient funds to return home, and relied on assistance from a rich man of the region, Xianyu Zhongtong (鮮于仲通). He also spent much time with the household of his father's cousin Yang Xuanyan (楊玄琰), and eventually carried on an affair with one of Yang Xuanyan's daughters (the later Lady of Guo). When Yang Yuanyan, who was sonless, died, Yang Zhao was temporarily in charge of the household, until Yang Yuanyan's daughters went to Henan Municipality (河南府, i.e., Luoyang
Luoyang
Luoyang is a prefecture-level city in western Henan province of Central China. It borders the provincial capital of Zhengzhou to the east, Pingdingshan to the southeast, Nanyang to the south, Sanmenxia to the west, Jiyuan to the north, and Jiaozuo to the northeast.Situated on the central plain of...

) to stay with their uncle Yang Xuanjiao (楊玄璬). Yang Zhao later served as the sheriff of Fufeng County (扶風, in modern Xi'an
Xi'an
Xi'an is the capital of the Shaanxi province, and a sub-provincial city in the People's Republic of China. One of the oldest cities in China, with more than 3,100 years of history, the city was known as Chang'an before the Ming Dynasty...

, Shaanxi
Shaanxi
' is a province in the central part of Mainland China, and it includes portions of the Loess Plateau on the middle reaches of the Yellow River in addition to the Qinling Mountains across the southern part of this province...

), but was unable to progress further, and returned to the Yi Prefecture region. While he was in the region, he also married his wife Pei Rou (裴柔), who had been a prostitute.

Rise to power

As of 744, Yang Xuanyan's daughter Yang Yuhuan had become Emperor Xuanzong
Emperor Xuanzong of Tang
Emperor Xuanzong of Tang , also commonly known as Emperor Ming of Tang , personal name Li Longji , known as Wu Longji from 690 to 705, was the seventh emperor of the Tang dynasty in China, reigning from 712 to 756. His reign of 43 years was the longest during the Tang Dynasty...

's favorite concubine. Meanwhile, at this time, Xianyu Zhongtong had become an associate of Zhangqiu Jianqiong (章仇兼瓊), the military governor (jiedushi
Jiedushi
The Jiedushi were regional military governors in China during the Tang Dynasty and the Five Dynasties and Ten Kingdoms Period. Originally set up to counter external threats, the jiedushi were given enormous power, including the ability to maintain their own armies, collect taxes, and pass their...

) of JIannan Circuit (劍南, headquartered in Chengdu), and Zhangqiu happened to be fearful that the powerful chancellor Li Linfu
Li Linfu
Li Linfu , nickname Genu , formally the Duke of Jin , was an official of the Chinese dynasty Tang Dynasty, serving as a chancellor for 18 years , during the reign of Emperor Xuanzong—one of the longest terms of service for a chancellor in Tang history, and the longest during Xuanzong's reign.Li...

, with whom he was not on good relations, would find some way to hurt him. He thus wanted someone to go to the capital Chang'an
Chang'an
Chang'an is an ancient capital of more than ten dynasties in Chinese history, today known as Xi'an. Chang'an literally means "Perpetual Peace" in Classical Chinese. During the short-lived Xin Dynasty, the city was renamed "Constant Peace" ; yet after its fall in AD 23, the old name was restored...

 to help him maintain good relations with powerful individuals on his behalf. Xianyu recommended Yang Zhao. Zhangqiu gave Yang a gift and also gave him many impressive items from the region and had him take them to Chang'an. Once Yang Zhao arrived at Chang'an, he gave the bribe from Zhangqiu to Consort Yang's sisters and two of her powerful cousins, Yang Xian (楊銛) and Yang Qi (楊錡), and further resumed his affair with one of her sisters. The sisters and cousins of Consort Yang thus repeatedly praised and recommended both Zhangqiu and Yang Zhao, and further pointed out to Emperor Xuanzong Yang Zhao's abilities to entertain by gambling. Yang Zhao was thus allowed in the palace, and subsequently was made an officer of the imperial guards.

As of 747, Yang Zhao was serving as Shi Yushi (侍御史), an imperial censor, when Li Linfu, wanted to accuse the official, Yang Shenjin (楊慎矜), of crimes. He thus engaged Yang Zhao to have Yang Zhao inform Yang Shenjin's cousin's son Wang Hong (王鉷), who resented Yang Shenjin for still viewing him as a junior member of the family, of Emperor Xuanzong's displeasure with Yang Shenjin over Yang Shenjin's involvement with a sorcerer named Shi Jingzhong (史敬忠). Li Linfu then induced Wang to make accusations against Yang Shenjin, who was a descendant of Sui emperors, of plotting to overthrow Tang and restore Sui. As a result, Yang Shenjin and his brothers Yang Shenyu (楊慎餘) and Yang Shenming (楊慎名) were forced to commit suicide, and many of their friends and family members were exiled. Meanwhile, Li Linfu, having unsuccessfully supported Emperor Xuanzong's son Li Mao (李瑁) the Prince of Shou to be crown prince
Crown Prince
A crown prince or crown princess is the heir or heiress apparent to the throne in a royal or imperial monarchy. The wife of a crown prince is also titled crown princess....

 (with Emperor Xuanzong selecting Li Heng
Emperor Suzong of Tang
Emperor Suzong of Tang , personal name Li Heng , né Li Sisheng , known as Li Jun from 725 to 736, known as Li Yu from 736 to 738, known briefly as Li Shao in 738, was an emperor of the Tang Dynasty and the son of Emperor Xuanzong...

 instead), was trying to find ways to undermine Li Heng, and therefore engaged Yang Zhao, Luo Xishi (羅希奭), and Ji Wen (吉溫) to falsely accuse people with connections to Li Heng, hoping to find a way to implicate Li Heng in improprieties. Yang Zhao was therefore able to use this opportunity to destroy several hundreds of households, although, with the powerful eunuch Gao Lishi
Gao Lishi
Gao Lishi , formally the Duke of Qi , was a eunuch official of the Chinese dynasty Tang Dynasty and Wu Zetian's Zhou Dynasty, becoming particularly powerful during Emperor Xuanzong of Tang's reign...

 and Emperor Xuanzong's son-in-law Zhang Ji (張垍) protecting him, Li Heng was not implicated.

As of 748, Yang Zhao carried some fifteen office titles, the chief among which were imperial censor and director of accounting in the ministry of treasury (度支郎中, Duzhi Langzhong). In 748, Emperor Xuanzong further made him Geishizhong (給事中), an imperial attendant, as well as deputy chief imperial censor (御史中丞, Yushi Zhongcheng), but continued to be in charge of accounting as well at the ministry of treasury. As of 749, with the prefectural treasury's food storages overflowing, Yang suggested that the prefectures, instead of storing food, buy silk with the food and transport the silk to the imperial treasury in Chang'an. Emperor Xuanzong, with Yang reporting record surpluses, took a tour of the imperial treasury with the officials and awarded him with a purple robe and a golden fish.

Meanwhile, by 750, Yang and Ji were allied with each other, and Ji was plotting for Yang how to replace Li LInfu as chancellor -- and he found crimes of Li Linfu's close associates Xiao Jiong (蕭炅) and Song Hun (宋渾), and then had Yang indict them and have them demoted, to try to undermine Li LInfu's hold on power. He also sought posthumous rehabilitation of his uncles Zhang Yizhi and Zhang Changzong, and at his request, Emperor Xuanzong posthumously restored the Zhangs' titles (stripped when they were killed in 705). Also, because there were references in prophecies to "golden sword" (金刀, which, when put together, made Zhao (釗)), he requested a name change as well. Emperor Xuanzong gave him the new name of Guozhong (meaning, "faithful to the state"). Grateful for what Xianyu had done for him at the start of his career, he had Xianyu made the military governor of Jiannan, despite the fact that Xianyu was harsh and thus offended the non-Han
Han Chinese
Han Chinese are an ethnic group native to China and are the largest single ethnic group in the world.Han Chinese constitute about 92% of the population of the People's Republic of China , 98% of the population of the Republic of China , 78% of the population of Singapore, and about 20% of the...

 vassals. Indeed, in 751, after Xianyu had attacked Nanzhao and suffered a major defeat (with 60,000 deaths), Yang hid the truth for him and claimed to Emperor Xuanzong that Xianyu had scored a major victory. Nevertheless, with the Nanzhao campaign continuing, Yang ordered that men be forcibly conscripted, even if they had previously had contributions to the state (which normally would lead to an exemption from conscription). He also had Xianyu offer to resign and recommend him instead; thereafter, Emperor Xuanzong made him the military governor of Jiannan, but he remained at Chang'an and did not report to Jiannan, although he continued to wage the campaign against Nanzhao, eventually with the Tang death toll running up to 200,000.

In 752, Yang received an opportunity to have Li Linfu removed. That year, Wang Hong's brother Wang Han (王銲) had been implicated in a coup attempt at Chang'an, and although Emperor Xuanzong, at the plea of Li LInfu, initially took no action against Wang Hong and Wang Han, he expected Wang Hong to offer to be punished, but Wang Hong did not, drawing Emperor Xuanzong's anger. Li Linfu's fellow chancellor Chen Xilie
Chen Xilie
Chén Xīliè was an official of the Chinese dynasty Tang Dynasty, serving as a chancellor during the reign of Emperor Xuanzong. During the An Shi Rebellion, he surrendered to An Lushan and served as chancellor of An's state of Yan at Luoyang...

 and Yang then both accused Wang Hong of treason, and Wang Hong was forced to commit suicide, depriving Li Linfu of a major ally. Wang's post as mayor of Jingzhao Municipality (京兆府, encompassing Chang'an) went to Yang. Yang then had the captives from Wang Han's failed coup implicate Li Linfu, and also had Chen and Geshu Han
Geshu Han
Geshu Han , formally Prince Wumin of Xiping , was a general of the Chinese dynasty Tang Dynasty of Tuqishi extraction. He became a powerful general late in the reign of Emperor Xuanzong and in 756 became responsible for defending Tong Pass against the rebel forces of An Lushan...

 implicate Li Linfu in the rebellion of the ethnically Tujue general Li Xianzhong (李獻忠). Li Linfu tried to defuse the threat by requesting that Yang be sent to Jiannan to personally oversee the Nanzhao campaign, and Emperor Xuanzong sent Yang to Jiannan, despite Yang's pleas and Consort Yang's pleas on his behalf. Emperor Xuanzong, however, promised to make him chancellor, and recalled him as soon as he reached Jiannan. When he returned to Chang'an, Li Linfu was gravely ill, and tried to ingratiate Yang by pointing out that Yang would be chancellor and entrusting his household to Yang. Upon Li Linfu's death, however, Yang induced Li Linfu's son-in-law Yang Qixuan (楊齊宣) into corroborating that Li Linfu was involved with Li Xianzhong. As a result, Li Linfu was posthumously stripped of honors, and his family members were exiled.

As chancellor

Meanwhile, Emperor Xuanzong made Yang Guozhong You Xiang (右相) -- the head of the legislative bureau of government (中書省, Zhongshu Sheng) and a post considered one for a chancellor; he also made Yang the minister of civil service affairs (文部尚書, Wenbu Shangshu), and further allowed him to keep his command of Jiannan. It was said that Yang was capable in rhetoric but lacked abilities and presence. While he tried to be a responsible official and was decisive, he was frivolous and insolent to other officials. He personally assumed over 40 posts, and expelled those officials who had good reputations but were not willing to follow his orders. It was further said that he tried to show off his talent by having important matters decided at his home without discussion with other officials, and then simply announce his decisions once he arrived at the government halls. Meanwhile, for his and Chen's contributions in "discovering" Li LInfu's involvement with Li Xianzhong, Emperor Xuanzong created both of them dukes in 753 -- in Yang's case, the Duke of Wei (魏), although he declined on account that the title was overly honorable for him, and so Emperor Xuanzong made him the Duke of Wei (衛, note different character) -- a slightly lesser title.

Meanwhile, though, Yang began to have discord with another favorite official of Emperor Xuanzong's -- An Lushan
An Lushan
An Lushan was a general who rebelled against the Tang Dynasty in China.His name was also transcribed into Chinese as Āluòshān or Gáluòshān ,...

, the military governor of Fanyang (范陽, headquartered in modern Beijing
Beijing
Beijing , also known as Peking , is the capital of the People's Republic of China and one of the most populous cities in the world, with a population of 19,612,368 as of 2010. The city is the country's political, cultural, and educational center, and home to the headquarters for most of China's...

), Hedong (河東, headquartered in modern Taiyuan
Taiyuan
Taiyuan is the capital and largest city of Shanxi province in North China. At the 2010 census, it had a total population of 4,201,591 inhabitants on 6959 km² whom 3,212,500 are urban on 1,460 km². The name of the city literally means "Great Plains", referring to the location where the Fen River...

, Shanxi
Shanxi
' is a province in Northern China. Its one-character abbreviation is "晋" , after the state of Jin that existed here during the Spring and Autumn Period....

), and Pinglu (平盧, headquartered in modern Chaoyang, Liaoning) Circuits, as An did not respect Yang. Yang repeatedly accused An of plotting rebellion, but Emperor Xuanzong ignored the reports. Yang, instead, entered into an alliance with Geshu, who also disliked An and who was then the military governor of Longyou Circuit (隴右, headquartered in modern Haidong Prefecture
Haidong Prefecture
Haidong Prefecture is a prefecture of Qinghai province in Western China. Its name literally means "east of the Lake."-Geography:...

, Qinghai
Qinghai
Qinghai ; Oirat Mongolian: ; ; Salar:) is a province of the People's Republic of China, named after Qinghai Lake...

) at that time, by recommending that Geshu take over the command of Hexi Circuit (河西, headquartered in modern Wuwei, Gansu
Gansu
' is a province located in the northwest of the People's Republic of China.It lies between the Tibetan and Huangtu plateaus, and borders Mongolia, Inner Mongolia, and Ningxia to the north, Xinjiang and Qinghai to the west, Sichuan to the south, and Shaanxi to the east...

).

At this time, Yang and his relatives were living in extreme luxury, and he and the Lady of Guo had connected mansions and were openly displaying their closeness. Meanwhile, whenever Consort Yang's sisters -- the Ladies of Guo, Han, and Qin -- and Yang Xian and Yang Qi were to attend Emperor Xuanzong and Consort Yang on tours to Huaqing Palace (華清宮, known for its hot springs), their trains would gather at Yang Guozhong's mansion, with each of the five households distinguished by a different color, causing a glamorous display of colors. Yang Guozhong would lead the train ahead with his own guards and the banners as the military governor of Jiannan.

In spring 754, Yang suggested to Emperor Xuanzong that An was set on rebelling, and that if Emperor Xuanzong summoned him to Chang'an, he would surely not come -- but when Emperor Xuanzong then did summon An, An immediately arrived at Chang'an and accused Yang of false accusations. Thereafter, Emperor Xuanzong would no longer believe any suggestions that An was plotting rebellion, despite Li Heng agreeing with Yang's assessment on this issue. Meanwhile, he considered promoting An to be chancellor, but Yang opposed, and this did not occur, and An subsequently returned to Fanyang. Meanwhile, Yang was having conflicts with Chen as well, and he forced Chen to resign and then recommended Wei Jiansu
Wei Jiansu
Wei JIansu , courtesy name Huiwei , formally Duke Zhongzhen of Bin , was an official of the Chinese dynasty Tang Dynasty, serving as a chancellor during the reigns of Emperor Xuanzong and Emperor Suzong.- Background :...

 to replace Chen. During a subsequent flood that caused much damage, Yang, not wanting any reports of damage, insisted that there was no damage -- and when the officials Li Xian
Li Xian (chancellor)
Li Xian , formally the Duke of Liang , was an official of the Chinese dynasty Tang Dynasty, serving as a chancellor during the reigns of Emperor Suzong and Emperor Daizong...

 and Fang Guan
Fang Guan
Fang Guan , courtesy name Cilü , formally the Duke of Qinghe , was an official of the Chinese dynasty Tang Dynasty, serving as a chancellor during the reigns of Emperor Xuanzong and Emperor Suzong....

 nevertheless submitted damage reports, he had them demoted. He also viewed the official Wei Zhi (韋陟) as a threat and had Wei accused of corruption -- and when Wei subsequently bribed Ji, who was by then allied with An, for help, Yang also discovered this and reported it. As a result, Wei and Ji were demoted, and An subsequently submitted a petition on their behalf, claiming that the accusations from Yang were false, but Emperor Xuanzong took no actions against either An or Yang.

In spring 755, however, the matters were beginning to come to a head. When An submitted a petition to have thirty-two non-Han generals under him replace Han generals, Emperor Xuanzong immediately agreed, despite stern arguments from Yang and Wei Jiansu that this was a sign of impending rebellion. Yang and Wei then suggested that An be promoted to be chancellor, and that his three commands be divided between his three deputies; Emperor Xuanzong initially agreed, but after the edict was drafted, Emperor Xuanzong tabled it and instead sent the eunuch Fu Qiulin (輔璆琳) to send fresh fruits to An and to observe him -- upon which An bribed Fu into submitting a favorable report. Yang, however, persisted in his reports against Yang, including having the mayor of Jingzhao arrest An's friend Li Chao (李超) and others and executing them secretly. An's son An Qingzong (安慶宗), who was then at Chang'an, reported this to An Lushan, causing An Lushan to be even more apprehensive. Subsequent events -- including An's refusal to attend the funeral of an imperial prince in summer 755 and his offer to send a large number of horses to Chang'an in fall 755, began to cause Emperor Xuanzong to start suspecting An. He also discovered that Fu had received An's bribes, and therefore had Fu killed, instead sending another eunuch, Feng Shenwei (馮神威) to Fanyang to again summon An. An refused.

In winter 755, An, finally feeling he had no choice but to rebel, did so. The imperial officials were all apprehensive, because An had the strongest troops of the realm at the time, except for Yang, who believed that An could be suppressed easily. However, An's forces roved through the region north of the Yellow River
Yellow River
The Yellow River or Huang He, formerly known as the Hwang Ho, is the second-longest river in China and the sixth-longest in the world at the estimated length of . Originating in the Bayan Har Mountains in Qinghai Province in western China, it flows through nine provinces of China and empties into...

 easily, reaching Luoyang around the new year 756 and capturing easily despite the efforts of Feng Changqing
Feng Changqing
Feng Changqing was a general of the Chinese dynasty Tang Dynasty. Feng was described as ugly in his appearance, and when he first met Gao Xianzhi and asked to be a guard for Gao, Gao initially rejected him, but eventually agreed to take Feng as a soldier under his command...

 to defend it. In response, Emperor Xuanzong considered passing the throne to Li Heng and personally lead the troops against An -- a proposal that Yang feared, believing that Li Heng would then take actions against the Yangs. He had Consort Yang dissuade Emperor Xuanzong from both actions. Meanwhile, Geshu was summoned to Chang'an to command the forces against An -- and Geshu was then able to manufacture evidence that An's stepfather's nephew An Sishun
An Sishun
An Sishun was a general of the Chinese dynasty Tang Dynasty during the reign of Emperor Xuanzong, probably of Tujue extraction. He was related to another general, An Lushan...

, whom Geshu also disliked, was complicit in An Lushan's rebellion, and An Sishun was executed. Yang, after this incident, began to be apprehensive of Geshu as well. When Geshu subsequently took defensive position at Tong Pass and refused to engage An's forces, reasoning that as long as he kept Chang'an secure, the other generals Li Guangbi
Li Guangbi
Li Guangbi , formally Prince Wumu of Linhuai , was a general of the Chinese dynasty Tang Dynasty, of ethnic Khitan ancestry, who was instrumental in Tang's suppression of the Anshi Rebellion.- Background :...

 and Guo Ziyi
Guo Ziyi
Guo Ziyi , formally Prince Zhongwu of Fenyang , was a general during the Tang Dynasty who ended the An Shi Rebellion, and participated in expeditions against the peoples of Huihe and Tubo...

 would soon be able to capture An's power base at Fanyang and render An harmless. Yang, however, feared that Geshu was instead plotting against him. (Geshu's deputy Wang Sili (王思禮) did suggest to Geshu that he kill Yang when he could, but Geshu refused.) Yang therefore sent his associate Du Qianhui (杜乾輝) with a separate army command to the front as well to watch Geshu, and Geshu, in turn apprehensive that Yang was going to act against him, found an excuse to execute Du, further causing Yang's suspicions. Yang therefore had Emperor Xuanzong order Geshu to engage An's forward commander Cui Qianyou (崔乾祐), despite Geshu's repeated protestations that a battle was inadvisable. Once the armies engaged, Tang forces were crushed by Cui's forces; Geshu was captured, and Tong Pass fell on July 10.

Yang then began to plan for an evacuation to Jiannan. Emperor Xuanzong agreed. On July 13, the imperial train, without announcing to the people of Chang'an, left Chang'an, with Emperor Xuanzong attended to by the imperial clan members, Yang, Wei Jiansu, the official Wei Fangjin (魏方進), the general Chen Xuanli (陳玄禮), and eunuchs and ladies in waiting
Lady in Waiting
Lady in Waiting is the 2nd album by American southern rock band Outlaws, released in 1976. -Track listing:#"Breaker-Breaker" – 2:59#"South Carolina" – 3:05#"Ain't So Bad" – 3:48...

 close to the emperor.

On July 15, Emperor Xuanzong's train reached Mawei Station (馬嵬驛, in modern Xianyang
Xianyang
Xianyang is a former capital of China in Shaanxi province, on the Wei River, a few kilometers upstream from Xi'an. It has an area of...

, Shaanxi
Shaanxi
' is a province in the central part of Mainland China, and it includes portions of the Loess Plateau on the middle reaches of the Yellow River in addition to the Qinling Mountains across the southern part of this province...

). The imperial guards were not fed and were angry at Yang Guozhong. Chen also believed that Yang Guozhong provoked this disaster and planned to kill him -- and reported his plans to Li Heng through Li Heng's eunuch Li Fuguo
Li Fuguo
Li Fuguo , né Li Jingzhong , known from 757 to 758 as Li Huguo , formally Prince Chou of Bolu , was a eunuch official during the reign of Emperor Suzong of the Chinese dynasty Tang Dynasty...

, but Li Heng was hesitated and gave no approval. Meanwhile, though, Tufan emissaries, who followed Emperor Xuanzong south, were meeting with Yang Guozhong and complaining that they were also not fed. The imperial guard soldiers took this opportunity to proclaim that Yang Guozhong was planning treason along with the Tufan emissaries, and they killed him, along with his son Yang Xuan (楊暄), the Ladies of Han and Qin, and Wei Fangjin. Wei Jiansu was also nearly killed, but was spared at the last moment with severe injuries. The soldiers then surrounded Emperor Xuanzong's pavilion, and refused to scatter even after Emperor Xuanzong came out to comfort them and order them to scatter. Chen publicly urged him to put Consort Yang to death -- which Emperor Xuanzong initially declined. After Wei Jiansu's son Wei E (韋諤) and Gao Lishi spoke further, Emperor Xuanzong finally resolved to do so. He therefore had Gao take Consort Yang to a Buddhist shrine and strangle her there. After he showed the body to Chen and the other imperial guard generals, the guard soldiers finally scattered and prepared for further movement. Meanwhile, Yang Guozhong's wife Pei Rou, son Yang Xi (楊晞), the Lady of Guo, and the Lady of Guo's son Pei Hui (裴徽) tried to flee, but were killed in flight.

Yang's biography in the Book of Tang
Book of Tang
The Book of Tang , Jiu Tangshu or the Old Book of Tang is the first classic work about the Tang Dynasty. The book began when Gaozu of Later Jin ordered its commencement in 941...

commented, with regard to Yang's misjudgment of the situation at Tong Pass:
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