Zhang appeared to be a mediocre ruler, as he was criticized for spending too much time in games and pleasure. He also tended to trust flattering attendants, even though he was not criticized for being cruel or extravagant. In 349, Suo Zhen () tried to persuade him to spend less time on games and not to reward his attendants with too much money, but while Zhang Chonghua thanked him and rewarded him, he did not appear to change his ways significantly. Soon after Zhang Chonghua succeeded his father, Later Zhao forces, under the generals Wang Zhuo () and
Ma Qiu, made a surprise attack against Former Liang, seizing Former Liang's territory south of the
Yellow River, including the important city of Jincheng (金城, in modern
Lanzhou,
Gansu). Zhang Chonghua commissioned
Xie Ai to lead his army, and Xie was able to defeat Ma and Wang's forces in 346 and again in 347, forcing them to retreat from their original plans to destroy Former Liang, but the land south of the Yellow River could not be recovered. Also in 347, the Jin emissary Yu Gui () arrived in Former Liang to confer Zhang Chonghua a number of offices—but not the one that Zhang Chonghua was looking for, Prince of Liang. He tried to persuade Yu to grant him that title, but Yu would not, and so he detained Yu (who would not be released until 363, long after Zhang Chonghua's death). Zhang appeared to have largely stood by as
Later Zhao collapsed during 349 to 351. Most of the western territory of Later Zhao fell into the hands of the
Di general
Fu Jiàn, who established
Former Qin in 351. In late 352 or early 353, the ex-Later Zhao general Wang Zhuo, who had been holding parts of modern eastern Gansu and who had declared loyalty to
Former Yan, could not resist Former Qin forces and surrendered to Zhang Chonghua, who treated him well, intending to use him as a general against Former Qin. In spring 353, he commissioned Wang, Zhang Hong (), and Song Xiu () to lead 15,000 men against Former Qin, but suffered a great loss—reportedly 12,000, or 80% of the army. Zhang and Song were captured, while Wang fled back to the capital Guzang (姑臧, in modern
Wuwei,
Gansu). In summer, however, Wang led 20,000 men and attacked Shanggui (上邽, in modern
Tianshui,
Gansu), capturing most of Qin Province (秦州, modern eastern Gansu). Zhang Chonghua then submitted a petition to
Emperor Mu of Jin, requesting a campaign against Former Qin. Emperor Mu sent messengers to praise and bestow more honors on Zhang Chonghua, but the Jin government did not appear to be interested in attacking Former Qin at the time, so the plan was not carried out. Later that year, Zhang grew ill, and he designated his nine-year-old son
Zhang Yaoling to be his
heir apparent. His older brother Zhang Zuo the Marquess of Changning plotted with Zhang Chonghua's attendants Zhao Zhang () and Wei Qi () to take over power, and Zhao and Wei falsely accused Xie Ai of crimes and had him exiled from the capital to be the governor of Jiuquan Commandery (酒泉, roughly modern
Jiuquan,
Gansu). Xie submitted a petition accusing Zhang Zuo and Zhao of plotting, and in winter of that year, when Zhang Chonghua grew gravely ill, he tried to summon Xie back to the capital to serve as Zhang Yaoling's regent, but the order was seized by Zhang Zuo and Zhao and never announced. ==Era name==