Xu Wen
Young and untested at his father's death Yang Wo had relied on the director of the guard, Xu Wen, for his ascension, but later grew to resent Xu Wen's influence. However, before he could pull himself free, Yang Wo was assassinated by Xu Wen and his colleague Zhang Hao in 908. Wen and Hao had initially planned to divide Wu between themselves and submit to Liang, but they soon fell out. Xu Wen installed Yang Wo's younger brother Longyan and had Zhang Hao killed. Yang Longyan was a mere puppet with Xu Wen as the state's true ruler. Wen made himself Runzhou governor and moved his command to Jinling. The regular administration at the capital was left to his son Xu Zhixun. After Zhixun's murder in 918, this position was inherited by Wen's stepson, Zhigao. In 919, Yang Longyan proclaimed himself King of Wu and inaugurated a new era name, thus for the first time Wu officially claimed to be a sovereign state. Longyan died of illness in 922 and was succeeded by his brother, Xingmi's fourth son, Yang Pu. As before, Xu Wen had the real power. He prodded Yang Pu to proclaim himself emperor, but died in 927 before this could happen. 29 November 927 Yang Pu acceded the throne as Emperor of Wu. Xu Zhigao was made grand marshal and director of the Chancellery.