Zhang Yi (Bogong)
Zhang Yi, courtesy name Bogong, was a military general of the state of Shu Han during the Three Kingdoms period of China. Born in the late Eastern Han dynasty, Zhang Yi was a 10th-generation descendant of Zhang Liang. He started his career as a scribe under the warlord Liu Bei, who founded Shu later, and gradually rose to the positions of a county prefect and commandery administrator. In the early 230s, he served as an area commander tasked with maintaining the peace in Shu's southern commanderies. In 234, he led the Shu vanguard during the Battle of Wuzhang Plains against Shu's rival state Wei. From 238 to 259, Zhang Yi steadily rose through the ranks to become one of Shu's top generals. During this time, although he strongly opposed the Shu general Jiang Wei's aggressive stance towards Wei, he still accompanied Jiang Wei on his military campaigns against Wei. In 263, he surrendered to Wei forces along with the Shu emperor Liu Shan when Wei launched a large-scale invasion of Shu. In the following year, Zhang Yi was killed by mutineers during a rebellion by the Wei general Zhong Hui. Like Liao Hua and Zong Yu, Zhang was one of few officials who served the Shu-Han state throughout its entire existence.
Family background
Zhang Yi was born sometime in the late Eastern Han dynasty in Wuyang County, Jianwei Commandery, which is present-day Pengshan District, Meishan, Sichuan. He was a 10th-generation descendant of Zhang Liang, a strategist and statesman who served under Liu Bang, the founding emperor of the Han dynasty. His great-great-grandfather Zhang Hao and great-grandfather Zhang Gang served as the Minister of Works and Administrator of Guangling Commandery respectively during the reign of Emperor Shun of the Eastern Han dynasty.Early career
In 214, after the warlord Liu Bei seized control of Yi Province from Liu Zhang and became the new provincial Governor, he employed Zhang Yi to serve as a scribe in his office.Towards the end of the Jian'an era of the Eastern Han dynasty, Zhang Yi was nominated as a xiaolian and subsequently appointed as the Chief of Jiangyang County. He was later reassigned to be the Prefect of Fuling County, and subsequently promoted to the rank of commandery administrator. He consecutively served as the Administrator of Zitong, Guanghan and Shu commanderies.
As an area commander
In 231, the Shu government commissioned Zhang Yi as General of the Household Who Pacifies the South and appointed him as the Area Commander of Laixiang to replace Li Hui, who went to serve in Zhuge Liang's Northern Campaign in Hanzhong,, putting him in charge of maintaining the peace in Shu's southern lands. Zhang proved to be unpopular compared to his predecessor as he lacked the flexibility to adapt the Shu code of law to local conditions in his jurisdictions, he became very unpopular among the masses.In 233, when a local tribal chief Liu Zhou started a rebellion, Zhang Yi rallied his troops and prepared to attack the rebels. However, before Zhang Yi managed to quell the revolt, the Shu central government summoned him to the capital Chengdu. When his subordinates urged him to follow orders and go to Chengdu immediately, Zhang Yi refused and said:
Zhang Yi then directed his troops to transport supplies to a staging area for the troops and kept them on high alert until his successor, Ma Zhong, arrived. Due to Zhang Yi's earlier efforts, Ma Zhong was able to successfully defeat Liu Zhou and suppress the revolt. Zhang Yi's actions earned him praise from Zhuge Liang, the Imperial Chancellor of Shu.
Battles against Wei
Battle of Wuzhang Plains
In 234, Zhang Yi served as the Chief Controller of the Vanguard when Zhuge Liang led Shu forces to attack Shu's rival state Wei for the fifth time since 228. Zhuge Liang also appointed him as the nominal Administrator of Fufeng Commandery, which was under Wei control.Following Zhuge Liang's death later that year during the Battle of Wuzhang Plains, Zhang Yi was appointed as Vanguard Army Commander. He also received a peerage as a Secondary Marquis for his contributions during the battle, as well as for his earlier efforts in helping Ma Zhong suppress Liu Zhou's rebellion.
Guarding Jianwei
In 238, Zhang Yi was reassigned to the Shu capital Chengdu to serve as a Master of Writing in the imperial secretariat. Within a short period of time, he was sent back to the frontline to serve as the Area Commander of Jianwei near the Wei–Shu border. In addition to his new appointment, he was granted acting imperial authority, promoted to Senior General Who Attacks the West, and had his marquis rank increased from that of a Secondary Marquis to a Marquis of a Chief Village.Battle of Didao
In 255, Zhang Yi returned to the Shu capital Chengdu for a discussion on Shu general Jiang Wei's plan to launch another invasion of Wei. During the discussion in the imperial court, Zhang Yi strongly objected to Jiang Wei's plan and pointed out that Shu lacked the resources to go to war and that the people were already tired of war. Jiang Wei ignored him and proceeded with his plan. He reassigned Zhang Yi to the position of Senior General Who Guards the South and ordered him to participate in the campaign.Jiang Wei attacked Wang Jing, the Wei governor of Yong Province, at Didao and inflicted a crushing defeat on the enemy. Tens of thousands of Wei soldiers fled after their defeat and drowned in the nearby Tao River. At that point in time, Zhang Yi advised Jiang Wei: "It's time to stop. We shouldn't advance any further, or we'll risk losing everything we have gained so far." When Jiang Wei turned furious, Zhang Yi told him that advancing further would be equivalent to "adding legs to a snake."
Jiang Wei did not heed Zhang Yi's warning and continued to besiege Wang Jing at Didao but failed to breach Didao's walls. Upon learning that Wei reinforcements led by Chen Tai were approaching Didao, Jiang Wei gave up on the fortress and retreated back to Zhongti.
Although Zhang Yi strongly disagreed with Jiang Wei's aggressive stance towards Wei and did not get along well with him, Jiang Wei still brought him along on his military campaigns against Wei. Zhang Yi also reluctantly participated in the campaigns.
In 259, the Shu emperor Liu Shan promoted Zhang Yi to the position of Left General of Chariots and Cavalry and appointed him as the nominal Inspector of Ji Province.
Death
In 263, the Wei regent Sima Zhao ordered his generals Zhong Hui, Deng Ai and others to lead a large-scale invasion of Shu from three fronts. In response to the Wei invasion, the Shu generals Jiang Wei, Zhang Yi, Liao Hua, Dong Jue and others led their troops to resist the invaders. Zhang Yi and Dong Jue received orders to guard Yang'an Pass and provide backup on the external perimeter.Zhang Yi later joined Jiang Wei and Liao Hua at the heavily fortified mountain pass Jiange to resist the Wei army led by Zhong Hui. In the winter of 263, the Shu emperor Liu Shan surrendered when the Wei army led by Deng Ai showed up unexpectedly outside Chengdu after taking a detour across dangerous terrain. As a result of Liu Shan's surrender, the Shu state's existence came to an end and it became part of Wei. After learning of Liu Shan's surrender, Zhang Yi and the other Shu generals at Jiange formally surrendered to Zhong Hui at Fu County.
Zhang Yi returned to Chengdu on 29 February 264 with Zhong Hui and the others. Over the next few days, with Jiang Wei's support, Zhong Hui plotted a rebellion against the Wei regent Sima Zhao. On 3 March, a mutiny broke out when some of Zhong Hui's officers who were unwilling to participate in the rebellion turned against their superior and killed him and Jiang Wei. Zhang Yi also lost his life during the chaos.