Zhang Zun was a minister of Shu Han

Shu Han

Shu Han was one of the three states competing for control of China during the Three Kingdoms period, after the fall of the Han Dynasty. The state was based on areas around Sichuan, which was then known as Shu...

 during the Three Kingdoms

Three Kingdoms

The Three Kingdoms period was a period in Chinese history, part of an era of disunity called the "Six Dynasties" following immediately the loss of de facto power of the Han Dynasty rulers. In a strict academic sense it refers to the period between the foundation of the state of Wei in 220 and the...

 period of Chinese history

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...

. Zhang Zun was the son of Zhang Bao (son of Zhang Fei). Zhang Zun along with Zhuge Zhan

Zhuge Zhan

Zhuge Zhan , style name Siyuan , was a politician and military general of Shu Han during the Three Kingdoms period of Chinese history...

 were both to defend Mianzhu Pass after the Cao Wei

Cao Wei

Cao Wei was one of the states that competed for control of China during the Three Kingdoms period. With the capital at Luoyang, the state was established by Cao Pi in 220, based upon the foundations that his father Cao Cao laid...

 general Deng Ai

Deng Ai

Deng Ai was a military general of Cao Wei during the Three Kingdoms era of Chinese history. It was said that whenever he saw a hill or wide valley, he would immediately size up the best places to store grain and position troops. His talent was recognized by Sima Yi, who recommended him to take up...

 led a campaign to conquer Shu Han

Conquest of Shu by Wei

The conquest of Shu by Wei was a military campaign launched by the state of Cao Wei against its rival Shu Han in 263 during the Three Kingdoms period of Chinese history. The campaign culminated in the fall of Shu and the tripartite equilibrium maintained in China for over 40 years since the end of...

. After Zhuge Zhan and his son both ended up being killed while the battle ensued, Zhang Zun himself left the castle to defend it with his utmost skills. Zhang was eventually killed in action.