Contents
Life and Legacy of Zhang Su
Zhang Su (courtesy name Junjiao) was a regional official who served the warlord Liu Zhang in Yi Province during the turbulent late Eastern Han dynasty. Holding the office of Grand Administrator of Guanghan, he was known as a tall, imposing figure with an impressive demeanor. His career became entwined with the dramatic shift of power across southern China during the famous Three Kingdoms period.
In 211 AD, Zhang Su was dispatched as an envoy to Jing Province to establish diplomatic ties with Liu Bei. Upon returning to Chengdu, he faithfully reported on the formidable discipline of Liu Bei’s military forces. However, political instability soon erupted from within his own family. His younger brother, Zhang Song, had secretly formed a cabal to invite Liu Bei to conquer Yi Province and overthrow Liu Zhang. Upon discovering this clandestine plot, he made the agonizing decision to report his brother’s treason directly to Liu Zhang, leading to Zhang Song’s immediate execution.
Fall from Favor
Following Liu Zhang’s eventual surrender to Liu Bei in 214 AD, the political landscape shifted dramatically. Despite his administrative competence, Liu Bei harbored deep personal disdain toward Zhang Su for betraying his own blood relative. Consequently, he was stripped of his official duties and barred from holding office in the emerging Shu Han administration, spending his final years outside imperial politics.
Historical Timeline
Diplomatic Mission to Jing Province
Sent as an official emissary to observe Liu Bei’s forces and report military findings back to Chengdu.
Uncovering the Treason
Discovers and exposes Zhang Song’s clandestine conspiracy to surrender the province, defending Liu Zhang’s administration.
Key Relationships
Family & Associates
- Zhang Song: Younger brother and conspirator whose illicit schemes were exposed to the regional governor.
- Liu Zhang: Governor of Yi Province whom he served faithfully as Grand Administrator of Guanghan.
- Liu Bei: Warlord and founder of Shu Han, who dismissed him from public office due to family betrayal.
In Novel
Chapter 62
- Zhang Su (张肃, Trương Túc): Zhang Su is Zhang Song’s elder brother and serves Liu Zhang. He discovers that Zhang Song has secretly communicated with Liu Bei and is helping Liu Bei obtain control of Yi Province. Fearing that he himself will be implicated, Zhang Su reports his brother’s activities to Liu Zhang. The report leads directly to Zhang Song’s arrest and execution. The novel therefore presents Zhang Su’s action as a betrayal motivated by fear for his own position.
In History
Service under Liu Zhang
- Zhang Su (张肃, Trương Túc) was the brother of Zhang Song (张松, Trương Tùng) and served Liu Zhang (刘璋, Lưu Chương), holding office as Administrator of Guanghan.
212 AD
- Zhang Su discovered that his brother had secretly communicated with Liu Bei (刘备, Lưu Bị) and was involved in plans threatening Liu Zhang.
212 AD
- Zhang Su reported Zhang Song’s correspondence to Liu Zhang. Liu Zhang ordered Zhang Song executed, exposing the internal division within the Yi Province administration.