to the subsidiary Hongyi Palace (), which was then renamed Da'an Palace (). Only then was Emperor Taizong able to move from the crown prince's palace to Taiji Palace. In 630, when Emperor Gaozu, who had been submitting tribute to the Eastern Turks throughout his reign, heard that Emperor Taizong had sent the general Li Jing to defeat and capture the Turkic khagan Jiali Khan (Ashina Duobi), commented, "Gaozu of Han was trapped [at Baideng (, in modern Datong, Shanxi) in 200 BCE by Xiongnu forces] and could not avenge himself. Now my son can destroy Tujue. I have entrusted the empire to the right person, and what do I have to worry about?" He subsequently summoned a number of princes and princesses, along with high level officials, to celebrate the victory, playing the pipa himself at the celebration and having the guests dance to it. As Chang'an was often hot during the summer, Emperor Taizong often invited Emperor Gaozu to go with him to Jiucheng Palace (, in modern Baoji, Shaanxi), to avoid the heat during the summer. However, as Sui's Emperor Wen had died there (which was named Renshou Palace () during Sui Dynasty), Emperor Gaozu did not want to visit Jiucheng Palace. Rather, in 634, Emperor Taizong began to construct another summer palace, Daming Palace (), to serve as Emperor Gaozu's summer palace, but Emperor Gaozu fell ill before it was completed, and he never visited Daming Palace. He died in spring 635. Era name Wude ( wǔ dé) 618–626 Chancellors during reign Li Shimin (618–626) Pei Ji (618–626) Liu Wenjing (618) Xiao Yu (618–626) Dou Wei (618) Dou Kang (618) Chen Shuda (618–626) Yang Gongren (619–626) Feng Deyi (620–626) Pei Ju (624–625) Yuwen Shiji (625–626) Gao Shilian (626) Fang Xuanling (626) Family Consorts and Issue: Empress Taimu, of the Dou clan of Henan (; 569–613) Li Jiancheng, Crown Prince Yin (; 589–626), first son Princess Pingyangzhao (; d. 623), third daughter Married Chai Shao, Duke Huo (d. 638), and had issue (two sons) Li Shimin, Emperor Taizong (; 598–649), second son Li Xuanba, Prince Weihuai (; 599–614), third son Li Yuanji, Prince Chaola (; 603–626), fourth son Noble Consort, of the Wan clan () Li Zhiyun, Prince Chu'ai (; 605–617), fifth son Princess Changsha () Married Feng Shaoshi of Changle () Virtuous Consort, of the Yin clan () Li Yuanheng, Prince Fengdao (; 619–632), eighth son