Princess Wencheng

Princess Wencheng (628-680 or 682), is an ancient historical figure who holds great significance in China. Her story was recorded and written about in many ancient Chinese literatures.
According to Chinese history, Princess Wencheng (Tibetan: Mun Chang Kungchu; ; 628–680/2) a name which roughly translates as "Princess Civilizer," surnamed Li, was a member of a minor branch of the royal clan of the Tang Dynasty (daughter of Li Daozong, the Prince of Jiangxia). She married King Songtsen Gampo of the Tibetan Empire in 641. She is also known by the name Gyasa or "Chinese wife" in Tibet. Some Tibetan historians consider both Princess Wencheng and Bhrikuti to be physical manifestations of the bodhisattva Tara.
Chinese accounts of Princess Wencheng.
Life.
According to Chinese accounts, in the spring of 634 on an official state visit to Imperial China, Tibetan King Songtsen Gampo fell in love at first sight and had relentlessly pursued the princess hand by sending envoys and tributes but was refused.
Allegedly, in 635/636, Royal Tibetan forces were deployed, attacking and defeating the peoples of Tuyuhun who strategically lived near the Lake of Koko Nor in present-day Qinghai, impeding a trade route into Imperial China. News of Tibetan King Songtsen Gampo's attack on Songzhou quickly spread from the ground to the Royal Courtiers, and Emperor Taizhou despatched his Militia and defeated Songtsen Gampo's army, causing Songtsen Gampo's retreat. He then sent a written expressed apology to the Tang Emperor. The Tang Emperor upon seeing Songtsen Gampo's sincerity, then agreed to marry the princess to the Tibetan king.
Tibetan sources (and Chinese sources not aligned with the PRC government), by contrast, say Songtsen Gampo sent an envoy to Luoyang, the Tang capital demanding (rather than requesting) a Chinese bride and insisting he would lead 50,000 battle-hardened Tibetan troops to the sparsely defended capital and slaughter the inhabitants if he was not given this tribute. According to historian Pan Yihong, the Tang emperor refused this demand and Gampo's army marched into China, burning city after city until they reached the walls of Luoyang, where the repeatedly-crushed Tang Army finally defeated the Tibetans in a single minor skirmish, thus enabling the Tang Emperor to save face by presenting his daughter as a "truce" rather than the tribute of the vanquished to the vanquisher.
Legacy.
According to the Tibetan history, the Songtsen Gampo's and Princess Wencheng's union brought hopes of promoting a harmonious, matrimonial relationship between the peoples of Tibet and China.
Princess Wencheng's life is depicted in novels such as the "Maṇi bka' 'bum" and the famed historiographies of "Rgyal rabs Gsal ba'i Me long".
Tradruk Temple in Nêdong allegedly commemorates Princess Wencheng: a thangka embroidered by the Princess is kept in one of its chapels.
Two traditional days, the fifteenth day of the fourth month and the fifteenth day of the tenth month of each Tibetan year, are marked by singing and dancing in honor of Princess Wencheng.
Historical relics such as the statues of Songtsen Gampo with Princess Wencheng are still worshiped and displayed for all to see along the trail of their wedding trip as well as in the Potala Palace at Lhasa.
Chinese claims of influence.
Allegedly, Princess Wencheng brought with her promises of trade agreements, maps on the Silk Road and a substantial amount of dowry which contained not only gold, but fine furniture, silks, porcelains, books, jewelry, musical instruments, and medical books.
Also, Princess Wencheng allegedly arrived with new agricultural methods. This possibly included the introduction of seeds of grains, and rapeseed, other farming tools and advice on how to increase Tibetan agricultural productivity in the region.
Chinese sources credit Princess Wencheng for introducing Tibet with other skills in metallurgy, farming, weaving, and construction. However, at least one of these is questionable because the Tang Historian Du Fu notes Tibet's metallurgical skills in terms suggesting they surpassed those known to Tang China. The Tang Annals report that Songsten Gampo wrote to Emperor Taizong in 648, requesting paper, ink, and other writing utensils. This has been taken by some modern Chinese sources to mean that the princess was involved in the request, and thereby introduced the methods of Chinese ink and paper production to Tibet. However, archaeological evidence indicates that papermaking technology was known in Tibet before the princess' arrival, likely spreading through southern trade routes.
Princess Wencheng is revered in China for being one of the brides who brought Chinese culture to the peoples beyond their borders - expanding their civilization with culture and knowledge.
Princess Wencheng as propaganda.
Since the 2000s, the Chinese state has been presenting an historical drama in Tibet which outlines the history of Tibet and especially the history of Chinese influence in the region. The drama seems to focus on the life and legacy of Princess Wencheng, depicting her relationship with King Songtsen Gampo and all of the cultural influences which she allegedly had on Tibet.