梁书
The "Weilüe" and "Book of Liang" record the arrival in 226 AD of a merchant named Qin Lun () from the Roman Empire (Daqin) at Jiaozhou (Chinese-controlled northern Vietnam). Wu Miao, the Prefect of Jiaozhi, sent him to the court of Sun Quan (the ruler of Eastern Wu during the Three Kingdoms) in Nanjing, where Sun requested that he provide him with a report on his native country and its people. An expedition was mounted to return the merchant along with ten female and ten male "blackish coloured dwarfs" he had requested as a curiosity, as well as a Chinese officer, Liu Xian of Huiji (in Zhejiang), who died en route. According to the "Weilüe" and "Book of Liang" Roman merchants were active in Cambodia and Vietnam, a claim supported by modern archaeological finds of ancient Mediterranean goods in the Southeast Asian countries of Vietnam, Thailand, Malaysia, and Indonesia.