Cao Zongshou

Cao Zongshou was the seventh governor of the Guiyi Circuit, whose jurisdiction famously included Dunhuang, during the Song dynasty.
His earliest recorded presence was in a banner depicting Guanyin, currently held by the Harvard Art Museum created in 985. There, he is dedicating the work to the late monk Yuanman, who resided over in the Mogao Caves.
According to the History of Song, he is the nephew of his predecessor, Cao Yanlu, where at the time, he held the position of quanzhi liuhou. In the year 1002, he rebelled against his uncle, resulting in Cao Yuanlu and Yuanlu's brother, Cao Yanrui committing suicide.
With approval of Emperor Zhenzong, he inherited the title of jiedushi of the Guiyi Circuit, with his younger brother, Cao Zongyun occupying his previous position as quanzhi liuhou. Meanwhile his son, Cao Xianshun took on the post of yanei duzhihuishi. In the same year, he and his wife, Lady Fan, was documented donating a large batch and last dated set of sutras to Mogao Caves, in a document now held at the Institute of Oriental Manuscripts of the Russian Academy of Sciences.
He died in the year 1014, and his son Cao Xianshun took his place as the eighth jiedushi of Guiyi. His brother, Cao Yanhui, became jianjiao xingbushangshu, which included jurisdiction of Guazhou County.