Jianzhou Jurchens
During the rule of the Ming Dynasty in China, Yilan, formerly known as Sanxing (三姓; Wade-Giles: San-hsing; historically also Romanized as San Sing), was one of the two important centers of the Jianzhou Jurchens of the Hurka River valley. (The other center was Ninguta in the upper reaches of the Hurka).