History - tell us about Princess Wencheng you know

Princess Wencheng was originally the daughter of Li Tangyuan's clan. In the 14th year of Zhenguan (640), Emperor Taizong Li Shimin granted Li the title of Princess Wencheng. In the 15th year of Zhenguan (641), Princess Wencheng married into Tibet and became the princess. The queen of Tubo Zampo Songtsen Gampo.

It was a good marriage between Tang and Tibet from then on. During the two hundred years, whenever a new Zanpu came to the throne, he would be asked to be "registered" by the Emperor of Tang.