Zhang Shi (, died August 320Vol.91 of Zizhi Tongjian indicate that Zhang Shi was killed in the 6th month of the 3rd year of the Tai'xing era; the month corresponds to 22 Jul to 20 Aug 320 in the Julian calendar.) was the regional warlord and ruler in the Former Liang state. He was the eldest son of Zhang Gui, who was a governor of Liang province under the Jin Dynasty. In June 314,Vol.124 of Taiping Yulan, citing Spring and Autumn Annals of the Sixteen Kingdoms, recorded that Zhang Gui died at the age of 60 (by East Asian reckoning) on the jichou day of the 5th month of the 2nd year of the Jianxing era, which corresponds to 19 Jun 314 in the Julian calendar. Zhang Shi inherited the title Duke of Xiping as well as the governorship of Liang from his father. He was posthumously known as Prince Ming of Former Liang ()
When the Western Jin Dynasty collapsed, Zhang Shi declared Liang an independent regional state, but decided to retain the Jin calendar system. In 320 AD, he was killed by an associate named Yan Sha (). Zhang's younger brother Zhang Mao replaced him.
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