Seeing Nurhaci's rise, Yehe initially sought to make peace by marrying Narimbulu's sister Monggo Jerjer to Nurhaci (later Empress Xiaocigao). She would later give birth to Hong Taiji, who would succeed Nurhaci and found the Qing dynasty. This peace was short-lived, however, and Yehe soon entered a long struggle against Nurhaci's domination. Princes Bujai and Narimbulu lead the nine-tribe coalition against Nurhaci's Jianzhou forces at the Battle of Mount Gele, which ended in decisive defeat. The Yehe state continued to resist the newly formed Jin dynasty until the fall of the East Yehe Castle, the last bastion to stand against Jin's Manchurian conquest.