First of all, many people's first reaction to this question was Emperor Kangxi or Emperor Qianlong of the Qing Dynasty. However, the longest-lived emperor in history was Zhao Tuo. It is worth noting that some people may not be familiar with Zhao Tuo. However, most people, especially friends from Guangdong and Guangxi today, are familiar with the land of Nanping Baiyue of Qin Shihuang. In the process of Qin Shihuang's southern expedition, Zhao Tuo was originally a general of the Qin Dynasty. But by the end of the Qin Dynasty, Xiang Yu, Liu Bang and others were overthrowing the Qin Dynasty, while Zhao Tuo, who was far away in Lingnan, did not return to Li, and chose to establish Nanyue State in Lingnan.

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After the demise of the Qin Dynasty, in the third year of Emperor Gaozu (204 BC), Zhao Tuo rose up, annexed Guilin County and Xiang Jun County, and established Nanyue State in Lingnan, which was known as the "King of Nanyue" in history. Zhao Tuo reigned for 7 1 year, and became king in 204 BC. It has been four years since the establishment of the Yuan Dynasty by Emperor Wu of the Han Dynasty when he died, namely 137 BC. For Zhao Tuo's age, most historical materials believe that it is about 240 BC-BC 137 years, which means that he lived about 103 years. As the old saying goes, when people are 70 years old, things are rare. Zhao Tuo, who lived over 100 years, was undoubtedly the oldest emperor in ancient China. Wait, someone may ask here. Zhao Tuo was originally called the "King of South Vietnam", not an emperor strictly speaking!

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In this regard, according to Sima Qian's records in Historical Records, Lv Hou came to Korea in BC 18 1 year, which blocked the establishment of Nanyue State in Zhao Tuo. So, naturally, Zhao Tuo was very angry and broke with the Western Han Dynasty, that is, he wanted to be an equal with the Western Han Dynasty, so he called himself "Emperor Wu of South Vietnam" and sent his troops to attack the Western Han Dynasty. In this way, Zhao Tuo can be included in the category of emperor because he proclaimed himself halfway. Of course, Zhao Tuo was only the emperor of the separatist regime in history. Among them, the longevity emperor of the unified dynasty in history was Emperor Aisin Gioro Hung Li of the Qing Dynasty.

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Finally, Aisingiorro Hongli (17 1 1 September 25th-1February 7th, 799), the sixth emperor of the Qing Dynasty, although his reign time was not as long as that of his grandfather Kangxi, Qianlong reigned for 60 years and Kangxi reigned for 6 1 year. However, Emperor Qianlong lived to be 89 years old, and Emperor Kangxi lived to be around 69 years old. Thus, Emperor Qianlong became the longest-lived emperor in the unified dynasty. In addition, what many people don't know is that Wu Zetian, the only recognized female emperor in history, lived 8 1 year, second only to Qianlong in the Southern Dynasties and Xiao Yan in Liang Wudi, and she was also a very long-lived emperor.