Bo Fuzhun

Chinese accounts

Bo Fuzhun appears in the Chinese annals of the Old Book of Tang, which record many dynastic events and ethnological information about the polities of Central and Southern Asia in the 6th-8th century, which were nominally under Chinese suzerainty and part of the Protectorate General to Pacify the West. According to the Old Book of Tang, in 745 CE, Fromo Kesaro, king of the Turk Shahis, sent a request to the Chinese court in order to abdicate in favour of his son Bo Fuzun (勃匐準). These events are again recorded in the Chinese annals Jiu Tangshu and Tang Huiyao.

天寶四年，又冊其子勃匐準為襲罽賓及烏萇國王，仍授左驍衛將軍
In the 4th year of the Tianbao reign [745 CE] another imperial edict was issued to make his [ie Fromo Kesaro's] son Bo Fuzun succeed him on the throne as the King of Jibin and Uddiyana. He was conferred the title of "General of Left Stalwart Guard".

— Old Book of Tang, Book 198.