The modern prefectural-level city Cangzhou, created in 1961, retains its name.
Geography
The administrative region of Cang Prefecture in the Tang dynasty is in modern eastern Hebei, the area sandwiched between Tianjin and northern Shandong. It probably includes parts of modern:
Shi Weile, ed. (2005). Zhongguo Lishi Diming Da Cidian (中国历史地名大词典) [Large Dictionary of Chinese Historical Place Names] (in Chinese). China Social Sciences Press. p. 1343. ISBN7-5004-4929-1.