How did Huang Zhong and Ma Chao die?

Huang Zhong was born in Nanyang (now Nanyang, Henan). A famous soldier in the late Eastern Han Dynasty. He was a corps commander under Liu Biao, and later returned to Liu Bei to help him attack Zhang. In 2 19 AD, Huang Zhong beheaded Xia, a general under Cao Cao, and was promoted to General Zheng in the battle of Dingjun Mountain. After Liu Bei changed the seal, he called the king of Hanzhong a general and gave him the title of Hou Guan. The following year, Huang Zhong died of illness, saying that he was just waiting to die.

Ma Chao, whose real name is Meng Qi, was born in Fufeng Maoling (now Xingping, Shaanxi) and a warlord in Liangzhou (now Wuwei, Gansu) at the end of Han Dynasty. In the second year of Zhangwu, Ma Chao died at the age of 47. Before he died, he entrusted his younger brother Ma Dai. Later, he was chased as Wei Hou.

. . . Refer to Baidu Encyclopedia