Where the wind began, at the end of Qingping, like a butterfly, gently flapping its wings, but unexpectedly a few years later, it set off a stormy wave. Li Chun, who was full of ambition, would not have thought that some small things that seemed trivial to him were quietly changing the ending of the story in the way he least wanted.

On February 26, the third year of Yuanhe, the eldest princess of Xian'an died in the Uighurs.

According to the blood relationship with the incumbent emperor, the princesses of the Tang Dynasty can actually be divided into three levels: princesses, eldest princesses, and eldest princesses. The princess is the daughter of the reigning emperor, the eldest princess is the sister of the reigning emperor, and the eldest princess is the aunt of the reigning emperor. The eldest princess of Xian'an is the aunt of the reigning emperor Li Chun, the sister of Shunzong Li Yu, and the daughter of Dezong Li Shi.

Twenty-one years ago, the eldest princess of Xian'an was just a princess, not an eldest princess, let alone an eldest princess, and she was at the same age as flowers. But the arrival of the Uighur marriage envoy completely changed the fate of her life, and from then on, she will be far away from Chang'an, far away from the Daming Palace, and she will no longer be accompanied by the beautiful spring light of Chang'an, but the boundless desert full of yellow sand.

At first, Li Shi also flatly rejected the Uighurs' marriage proposals, not because of pity for his daughter, but because of hatred, bitter hatred.

The young Li Shi once came to the camp of the Uighurs in Shaanzhou as an envoy of the Tang Empire, and it was there that Li Shi suffered great humiliation. The Uighurs flogged Li Shi's retinue to death on the spot, and the Tang prince Li Shi was driven out of the Uighur camp. Therefore, when the Uighur envoy made a marriage proposal, Li Shih refused without hesitation, but the prime minister Li Shi succeeded in convincing Li Shih because of the situation.

It turned out that after the Anshi Rebellion, in order to quell the rebellion, the Tang Empire transferred all the soldiers and horses of the Longyou, Hexi, and Shuofang generations back to the interior to participate in the counterinsurgency, resulting in an extreme emptiness in the northwest frontier. The Tang Empire's rival Tubo took advantage of the weakness and seized the Longyou and Hexi corridors without much effort, and began to expand wildly, even threatening the empire's capital Chang'an for a time.

In order to deal with the pressing of the Tibetans, the Tang Empire had no choice but to unite with the Uighurs and the Great Food to fight against the Tibetans, and the most effective, direct and fastest way to unite was to make peace. Thus, the eldest princess of Xian'an, no, it should have been the princess of Xian'an at that time, became a tool for political marriage, married the long-lived heavenly relatives of the Uighurs, and the princess of the Tang Dynasty became the Kedun of the Uighurs.

After the death of the longevity of the heavenly relatives of the Khan, the Tang princess married the son of the longevity of the heavenly relatives of the loyal khan in accordance with the relevant customs of the desert. Soon after, the loyal khan was poisoned to death, and the princess remarried his young son, Fengcheng Khan. Fengcheng Khan also died soon, and his prime minister became Huaixin Khan, and the Tang princess became Huaixin Khan's Kedun.

Over the past 21 years, no matter how frequent and fierce the Uighur power struggles were, no matter how the situation changed, the princess of the Tang Empire always maintained the name of Kedun, and the respect of the Uighurs for her was consistent. Now, the eldest princess of Xian'an died suddenly, and a few days later, Huaixin Khan also died.

The relationship constructed through marriage has lost the basis for its existence, and the Tang Dynasty and the Uighurs are faced with the opportunity to reshuffle the cards. Whether it is "amiable" or not has become a touchstone. The attitude of the Uighurs was positive and sincere, and soon the Uighur marriage envoy Izhu Nan traveled with the camel caravan to Chang'an, expressing the sincerity of the new Uighur khan's marriage proposal. However, to everyone's surprise, Li Chun rejected the Uighur emissary's proposal.