The Han Dynasty and the Tang Dynasty are known for their toughness and prosperity in Chinese history, but in fact, both the Han Dynasty and the Tang Dynasty were relatively weak when they were just founded, and the founding emperor of the Han Dynasty, Liu Bang, was surrounded by the Xiongnu for seven days and seven nights, and almost threw his life in Baideng, and the founding emperor of the Tang Dynasty, Li Yuan, once took the initiative to claim subjection to the Turks and recognized the Turks as their righteous fathers.
It is also because the Han and Tang Dynasties were relatively weak at the beginning of their founding, so when dealing with powerful foreign races, it was basically based on the relatively humiliating foreign policy of "peace and affinity", the Han Dynasty sent and kissed Wang Zhaojun, and the Tang Dynasty sent peace and relatives princess Wencheng, all of which were positive figures who were sung for thousands of years, but the Han Dynasty rarely had peace and affinity after Emperor Wu of Han, and the Sheng Tang In people's hearts, it was more like the existence of peace and relatives at every turn.
Many people think that the matter of harmony and kissing is that the Central Plains Dynasty sent out the princesses of its own family, in exchange for temporary peace on the border with this kind of weakness, but if we really think deeply about the rules, we can find that there is actually a lot of articles in this, and many of the princesses who are sent to kiss and kiss are not real "princesses", but some daughters of the clan, and even palace girls like Wang Zhaojun.
And the Nomadic peoples such as the Xiongnu and turks did not care about this, as long as the Central Plains Dynasty was still in harmony and still sending "princesses" to themselves, then they could be quiet for a long time and not harass the border for a long time, mainly because what they valued was not the princess herself, but the dowry materials that came with the princess.
When the Central Plains Dynasty was in peace, the dowry materials for the princess were often extremely rich, and all kinds of gold and silver treasures could only be regarded as small heads, and the real big head was the grain that some nomads themselves did not produce, but they needed very much, as well as their seeds, silk cotton, tea, salt, and other items, as well as the accompanying handicraft craftsmen, the production technology and advanced culture represented by books, and so on.
As long as these dowry supplies are given enough, then the nomads do not care whether the princess is true or false, and will not invade the Central Plains for a period of time, after all, the reason why they risk losing their heads and going to invade the borders of the Central Plains Dynasty is that in the final analysis, it is for such things, and since they already have it, they do not have to risk their lives.
It is precisely because of this reason that the "true princesses" sent out by the relatives of the successive dynasties are actually very few, basically there will be no emperor's own daughter, the famous Wang Zhaojun is only a palace girl who has been drafted, and the famous Princess Wencheng is only the daughter of Li Tangyuan's branch.
So how many true princesses were sent away throughout the Tang Dynasty? The number may be even greater than you think, starting in 639 when Tang Taizong's niece Princess Honghua (daughter of Li Daoming, the king of Huaiyang) married Tugu Hun Nuoyu, to 883, when Tang Yizong's second daughter Princess Anhua planned to marry Long shun , the king of Nanzhao ( not married ) ended, and the Tang Dynasty had a total of 20 princesses and nomadic leaders and relatives, four of whom were not married for various reasons.
That is to say, there are a total of sixteen princesses who have married out, and there are only 6 "true princesses" of them, namely Princess Xinxing, the 15th daughter of Tang Taizong, Princess Ningguo, the second daughter of Tang Suzong, and Princess Xian'an, the 8th daughter of Tang Muzong, as well as the imperial sisters Yong'an Changchang, Princess Taihe and Princess Anhua.