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Emperor Wen's death was kept secret for eight days, before Yang Guang announced it and took the throne (as Emperor Yang). Emperor Yang sent Yang Su's brother Yang Yue () back to Daxing. Once Yang Yue was back at Daxing, he forged an edict from Emperor Wen, ordering Yang Yong to commit suicide. When Yang Yong refused, Yang Yue strangled him, and only after Yang Yong died declared Emperor Wen's death. Emperor Yang posthumously created Yang Yong the Prince of Fangling, but did not allow any of Yang Yong's sons, who were reduced to commoner rank when Yang Yong was deposed, to inherit the title. In 607, Emperor Yang had Yang Yong's sons put to death.