Overview
Zhang Lu (died 216), courtesy name Gongqi, was a Chinese politician, religious leader, and warlord who lived during the late Eastern Han dynasty. He was the third generation Celestial Master, a Taoist religious order. He controlled a state in the Hanzhong region, which he had named Hanning until 215, when he surrendered to Cao Cao, whom he would serve until his death one year later.
Warlord of Hanzhong
Upon the death of his father, Zhang Heng (张衡), Zhang Lu inherited control of the Celestial Masters religious group, and therefore became its third leader (the first was Zhang Lu's grandfather Zhang Daoling). The religion enjoyed its greatest popularity in Yi Province (covering present-day Sichuan and Chongqing), but when Zhang Lu took control of the group, it was being challenged in the area by a shamanistic religion led by Zhang Xiu (張脩, no family relation to Zhang Lu).
Against this background, both Zhang Lu and Zhang Xiu were abruptly ordered by Liu Yan to go together to attack Su Gu, the Han-appointed administrator of Hanzhong Commandery, and take over his territory. However, having his own designs, Zhang Lu killed Zhang Xiu and took command of his troops and religious followers before he went off for the campaign against Hanzhong. He successfully managed to defeat Su Gu, and upon taking control of Hanzhong, renamed the region Hanning, ruling it by the principles of his religion. It is worth noting that although he nominally followed the orders of Liu Yan, when Liu Zhang succeeded him many years later, Zhang Lu refused to follow Liu Zhang's orders. As a result, Liu Zhang ordered the execution of Zhang Lu's mother, younger brothers and many other family members.
From Wikipedia (CC BY-SA 4.0).