Emperor Xiaowen of Northern Wei
In the Northern dynasties (386 - 581 AD), ordinary women always wore short jackets and coats. The ethnic Xianbei (鮮卑) founded the Northern Wei dynasty in 398 A.D. and continued to wear their traditional, tribal nomadic clothing to denote themselves as members of the ruling elite until c. 494 A.D. when Emperor Xiaowen of Northern Wei decreed a prohibition of Xianbei clothing among many other prohibition on Xianbei culture (e.g. language, Xianbei surnames) as a form of sinicization policies and allowed the intermarriage between Xianbei and Chinese elites. The Wei shu (魏書; the "History of the Northern Wei") even claimed that the Xianbei rulers were descendants of Yellow Emperor just like the Han Chinese despite being non-Chinese. The Wei shu also records that Emperor Xiaowen of Northern Wei promoted Chinese-style long robes and official crowns in the court to display the wearer's rank and his hierarchical position in the court and ritual functions. For example, both male and female patrons appeared in Xianbei-style attire during the 5th century AD, this can be seen particular at the Yungang caves temples near Datong and in the earliest carvings at Longmen, whereas in the first third of the 6th century, the patrons tend to appear in Chinese-style clothing in the majority of Northern Wei caves at Longmen; this change in clothing style has been suggested to be the result of sinicization policies regarding the adoption of Chinese-style clothing in the Northern Wei court."" Earliest images of nomadic Xianbei-style dress in China tend to be depicted as a knee-length tunic with narrow sleeves, with a front opening, which can typically be collarless, round-collared, and sometimes be V-neck collared; men and women tend to wear that knee-length tunic over trousers for men and long, ground-length skirts for women. When their tunics had lapelled, the lapel opening was typically "zuoren." Xianbei people also wore Xianbei-style cloaks and "xianbei hat" (鮮卑帽; xianbei mao).