sentences:  In 1369, Chang died of illness on the return journey to Nanjing in the east of present-day Xuanhua County, Hebei.When Zhu Yuanzhang heard of Chang's death, he wrote a poem mourning Chang and posthumously granted Chang the title "Prince of Kaiping" () and the posthumous name "Zhongwu" ().Chang Yuchun had two sons, Chang Mao () and Chang Sheng ().