Initially, Yehe was relatively weak and was frequently raided by Hada. Conflict between Yehe and Hada continued until the reign of Cinggiyanu and Yangginu, who were sons of the beile Taicu. They expanded Yehe's territory through conquest of smaller neighbouring states, consolidated Yehe's powerbase with the construction of two castles, and made peace with Hada; Cinggiyanu married a daughter of Wangtai and Wangtai married Cinggiyanu's younger sister. With the support of Hada, Cinggiyanu and Yangginu successfully defeated the other sons of Taicu and gained the throne of Yehe themselves.