Prince Qi succeeded to the throne as Emperor Jing, and Empress Dou became empress dowager and the effective lead figure in his administration. He became heavily influenced by his mother both in terms of governing philosophy and politics, and he exceedingly feared insult and disrespect to his mother, and he largely continued his father's policies. He also created her brother Guangguo and her nephew Dou Pengzu (竇彭祖, Zhangjun's son) marquesses. A major concern for Empress Dou was the welfare of her young son, Liu Wu, who had by that point been created the Prince of Liang, and he, at her suggestion, seriously considered making him crown prince over one of his own sons, although he ultimately did not do so. In any case, however, the Principality of Liang, because of imperial favours and its own location as prime farmland, became exceedingly wealthy. Whether Empress Dowager Dou favoured Emperor Jing's policies of reducing principality sizes—which eventually led to the Rebellion of the Seven States in 154 BC—is unknown. During that rebellion, however, her heart was wrenched when the Principality of Liang was under heavy attack by the rebelling princes. She wanted Zhou Yafu, the commander of the imperial forces, to relieve Liang as soon as possible, but Zhou correctly concluded that the better strategy was to bypass Liang and cut off the rebels' supply lines first. Zhou's strategy would lead to victory, but would also earn him the enmity of Prince Wu and Empress Dowager Dou. She was probably pleased when Zhou, then under arrest under false charges of treason, committed suicide in 143 BC. Empress Dowager Dou's concerns for Prince Wu would be tested again in 148 BC. Prince Wu, whose contribution in repelling the rebels during the Rebellion of the Seven States had earned him the privilege of using many imperial styles, wanted to be crown prince. This was favored by Empress Dowager Dou as well, but opposed by officials, who believed such a move would bring instability to dynastic succession. When Prince Wu sought permission to build a highway directly from his capital Suiyang (睢陽, in modern Shangqiu, Henan) to Chang'an, the same officials, fearing that the highway might be used for military purposes if Liang rebelled, opposed it. Prince Wu had these officials assassinated. Emperor Jing was extremely angry and sent many investigators to Liang to track down the conspirators, whom Prince Wu eventually surrendered. However, Emperor