Сонгцэн Гампо
According to folklore, Singha Sartha Aju was the first merchant to travel to Tibet. The history of the Lhasa Newars officially dates from the seventh century with the marriage of Nepalese Princess Bhrikuti with Tibetan King Songtsän Gampo. The traders and artisans who accompanied Bhrikuti to Lhasa as part of her retinue established commercial and cultural ties between Nepal and Tibet.