A Chinese Biographical Dictionary/Chang Hsüan-ching
61Chang Hsüan-ching 張玄靚, (T. 元安). Died A.D. 363. Son of Chang Ch'ung-hua. He slew his usurping uncle Chang Tsu and his sons, and was confirmed in 361 as Duke. He was poisoned by his uncle Chang T'ien-hsi, the last of a series of favourites, to each of whom he had given unlimited power.