involvement with a sorcerer named Shi Jingzhong (). Li Linfu then induced Wang to make accusations against Yang Shenjin, who was a descendant of Sui emperors, of plotting to overthrow Tang and restore Sui. As a result, Yang Shenjin and his brothers Yang Shenyu () and Yang Shenming () were forced to commit suicide, and many of their friends and family members were exiled. Meanwhile, Li Linfu, having unsuccessfully supported Emperor Xuanzong's son Li Mao () the Prince of Shou to be crown prince (with Emperor Xuanzong selecting Li Heng instead), was trying to find ways to undermine Li Heng, and therefore engaged Yang Zhao, Luo Xishi (), and Ji Wen () to falsely accuse people with connections to Li Heng, hoping to find a way to implicate Li Heng in improprieties. Yang Zhao was therefore able to use this opportunity to destroy several hundreds of households, although, with the eunuch Gao Lishi and Emperor Xuanzong's son-in-law Zhang Ji () protecting him, Li Heng was not implicated. As of 748, Yang Zhao carried some fifteen office titles, the chief among which were imperial censor and director of accounting in the ministry of treasury (度支郎中, Duzhi Langzhong). In 748, Emperor Xuanzong further made him Jishizhong (), an imperial attendant, as well as deputy chief imperial censor (御史中丞, Yushi Zhongcheng), but Yang Zhao continued to be in charge of accounting as well at the ministry of treasury. As of 749, with the prefectural treasury's food stores overflowing, Yang suggested that the prefectures, instead of storing food, buy silk with the food and transport the silk to the imperial treasury in Chang'an. Emperor Xuanzong, with Yang reporting record surpluses, took a tour of the imperial treasury with the officials and awarded him with a purple robe and a golden fish. Meanwhile, by 750, Yang and Ji were allied with each other, and Ji was plotting with Yang how to replace Li LInfu as chancellor—and he found crimes of Li Linfu's close associates Xiao Jiong () and Song Hun (), and then had Yang indict them and have them demoted, to try to undermine Li LInfu's hold on power. He also sought posthumous rehabilitation of his uncles Zhang Yizhi and Zhang Changzong, and at his request, Emperor Xuanzong posthumously restored the Zhangs' titles (stripped when they had been killed in 705). Also, because there were references in prophecies to a "golden sword" (金刀, which,