was established by Zhao Tuo, a Chinese general of the Qin dynasty, Nanyue's political and bureaucratic systems were, at first, essentially just continuations of those of the Qin Empire itself. Because of Zhao Tuo's submissions to the Han dynasty, Nanyue also adopted many of the changes enacted by the Han, as well. At the same time, Nanyue enjoyed complete autonomy – and de facto sovereignty – for most of its existence, so its rulers did enact several systems that were entirely unique to Nanyue. Nanyue was a monarchy, and its head of state generally held the title of "king" (), though its first two rulers Zhao Tuo and Zhao Mo were referred to as "Emperor" within Nanyue's borders. The kingdom had its own Calendar era system based (like China's) on Emperors' reign periods. Succession in the monarchy was based on hereditary rule, with the King or Emperor's successor designated as crown prince. The ruler's mother was designated empress dowager, his wife as empress or queen, and his concubines as "Lady" (). The formalities extended to the ruler's family were on the level of that of the Han dynasty Emperor, rather than that of a feudal king. Although Nanyue continued the Commandery-County system of the Qin dynasty, its leaders later enfeoffed their own feudal princes and lords – a mark of its sovereignty – in a manner similar to that of the Western Han. Imperial documents from Nanyue record that princes were enfeoffed at Cangwu, Xixu, as well as local lords at Gaochang and elsewhere. Zhao Guang, a relative of Zhao Tuo, was made King of Cangwu, and his holdings were what is now Wuzhou in the Guangxi Zhuang Autonomous Region. In what is considered a manifestation of Zhao Tuo's respect for the Hundred Yue, he enfeoffed a Yue chieftain as King of Xixu in order to allow the Yue of that area to enjoy autonomy under a ruler of their own ethnicity. The chieftain's name is unknown, but he was a descendant of Yi-Xu-Song, the chieftain killed while fighting the original Chinese invasion under the Qin dynasty. Nanyue's bureaucracy was, like the famed bureaucracy of the Qin dynasty, divided into central and regional governments. The central government comprised a prime minister who held military and administrative authority, inner scribes who served under the prime minister, overseeing Censors of various rank and position, commanders of the Imperial Guard, senior officials who