Biography
Family and Early Years
Both other accounts list Xinuluo as Luosheng's father. The histories record that Luosheng was born in 635; no reliable record of the exact day or place of his birth survives. Tang-era histories place the Mengshe Zhao and its leaders within the political pattern of the southwest, where six zhao stood side by side, and describe the Nanzhao people as belonging to the Wuman. The surviving material contains no further detail of Luosheng's early years.
Seeking Help from the Tang
In 654 (5th year of the Yonghui era, Tang) the Mengjun Zhao attacked the Mengshe Zhao. One account and another record that Xinuluo sent Luosheng into Tang territory to ask for protection, that Emperor Gaozong appointed him governor of Weizhou and that the commander of Yaozhou, Li Yi, then came to the rescue. The surviving encyclopedic material does not say whether the appointment carried direct authority over the internal affairs of the Mengshe Zhao, so no inference is drawn from it about the exact relation of rule between the Tang and the Mengshe Zhao.
Inheriting the Mengshe Zhao and Relations with the Tang
Two accounts both give 674 (1st year of the Shangyuan era, Tang) as the year of Xinuluo's death and Luosheng's accession, and record that Luosheng travelled to the Tang court several times during his reign. One account also says in summary that the other zhao and the Heman were then influenced by Tibetan power while the Mengshe Zhao maintained continuous intercourse with the Tang court; the other account does not develop this comparison, so the content is given only as a supplementary record.
Names and Variant Genealogies
The "Account of the Southern Barbarians" in the *Old Book of Tang* says that "Xinuluo begot Luosheng", records that Luosheng went to court during the reign of Wu Zetian and received a brocade robe and a gold belt, and places his death around 713 (early in the Kaiyuan era of Tang), with Sheng Luopi as his successor. The genealogy in the *New Book of Tang* instead reads "Xinuluo begot Luosheng Yan, and Luosheng Yan begot Yan Ge", records that Yan Ge died between 713 and 741 (during the Kaiyuan era of Tang) and that his younger brother Sheng Luopi succeeded. The two books differ over the names and the order of succession. Another account preserves the variant that Luosheng and Luosheng Yan were two different men, while a further account lists Luosheng Yan as an alternative name of Luosheng. The available material is not enough to remove this divergence; the entry is written under the name Luosheng and does not force the names of the different histories into an undisputed genealogy.
Later Years and After His Death
The main text of one account and another both record that Luosheng died of illness at Chang'an in 712 (1st year of the Xiantian era, Tang) and that his son Sheng Luopi succeeded him. The *Old Book of Tang* places his death around 713 (early in the Kaiyuan era) without giving an exact Gregorian year. The two records do not fully agree, and the entry adopts 712 from the main text of the account that gives it.