On the first day of the ninth month of the lunar calendar in 626, Emperor Taiji officially succeeded to the throne of Houjin Khan under the recommendation of everyone. Since Emperor Taiji had already taken the throne, he was the supreme commander of the Eight Banners Brigade. However, ten years later, in 636, Emperor Taiji killed the Manchurian Zhenglan Banner and killed more than 1,500 people! So why did Huang Taiji wash the blue flag in blood?
Some people may think that 1500 people is not too much, so let's first analyze the eight flags system. According to the standards set by Nurhaci, three hundred people are recorded as one cow, five cattle are recorded as one jiala, five jiala are one gushan, and one gushan is a banner. In other words, Huang Taiji killed more than 1,500 people under Zhenglan's banner, accounting for one-fifth of Zhenglan's banner.
So why did The Blue Flag suffer such a great disaster? The reason is actually related to the owner of the blue flag! Nurhaci established the eight flags system, taking two yellow flags by himself, two red flags on behalf of Shan, Amin with a blue flag, Huang Taiji with a white flag, and Dudu with a white flag, and the blue flag was commanded by Mang Gultai.
Mang Gultai was nurhaci's fifth son, five years older than Emperor Taiji. Mang Gultai was brave and good at war, made many military achievements, and was named three baylors by Nurhaci. However, Mang Gultai had a fiery temper and belonged to the kind of courageous and resourceful people, with a very low political IQ, so after Emperor Taiji ascended the throne, the two had a very sharp conflict.
In 1631, the Battle of Dalinghe broke out between the Later Jin and the Ming Dynasty. During this period, Mang Guertai confronted the Emperor Taiji in public, while also holding the sabre in his hand. At this time, Mang Gurtai's half-brother Dege class came forward to "rebuke his rebellion and beat him", which completely angered Mang Gultai, and he "drew the blade out of the sheath" in front of the Emperor Taiji, and almost had a gunfight.
Emperor Taiji was very angry, and then summoned belle to discuss Mang Gultai's crimes. The final result was, "Take Heshuo Baylor, lower Dorobele, cut five ox records, fine silver and armor, carved kurama ten, su kurama two." After that, Mang gultai was depressed and died of a violent illness a year later. Huang Taiji showed great grief and personally paid tribute.
Two years later, a man named Leng Monk Ji informed Emperor Taiji that Mang Guertai had "seized the throne" with his younger brother Dege and sister Mang Guji before his death. As a result, Emperor Taiji found as many as sixteen "Seals of the Emperor of the Golden Kingdom" in Mang Guertai's palace, so he believed that they were "conspiring against the law" and "conspiring against the law".
Emperor Taiji made the decision, "To capture Lord Mang gultai, Mangku Zigege and Mang Gultai's son Ebilun to death, and the remaining sons and depose the clan chamber." The historical data is very easy to say, but the process is very cruel. Although Mang Guertai died, his power was still there, and the punishment of Huang Taiji provoked a strong resistance from them, and even infighting broke out between the two sides.
His arms were barely his thighs, and in the end more than 1,500 people were killed. At this point, Mang Gurtai's forces were uprooted, and even his grave was dug up, "the bones of the cold, abandoned again." Later, Huang Taiji adapted the Zhenglan Banner and completely annexed it under his direct rule.
The massacre and adaptation of the Zhenglan Banner by Huang Taiji was actually to consolidate his rule and strengthen the imperial power. Because Nurhaci implemented the eight-flag system, and the flag owners jointly governed the state, after the emperor Taiji ascended the throne, his power was limited, especially by the other three baylors. In order to strengthen the imperial power, he had to attack the other three.
References: 1. Draft History of the Qing Dynasty; 2. Records of Emperor Taizong of the Qing Dynasty; 3. Historical Materials of the Ming and Qing Dynasties