Agrippina the Younger to more modern sources, it is possible (but exceedingly convenient) that Claudius died of natural causes; Claudius was 63 years old. Agrippina was named a priestess of the cult of the deified Claudius. She was allowed to visit senate meetings, watching and hearing the meetings from behind a curtain. In the first months of Nero's reign Agrippina controlled her son and the Empire. She lost control over Nero when he began to have an affair with the freed woman Claudia Acte, which Agrippina strongly disapproved of and violently scolded him for. Agrippina began to support Britannicus in her attempt to
Emperor Yang of Sui Emperor Yang had Li Hun, Li Min, and their clansmen executed, and further poisoned Yang Lihua's daughter Yuwen Eying (宇文娥英). Later in 615, Emperor Yang carried out a tour of the northern provinces with the Empress Xiao and much of the imperial court. Shibi Khan, angered that the imperial advisor Pei Ju had promised a princess to his brother Ashina Chiji () and had executed his close advisor Shishu Huxi () under false pretenses, launched a surprise attack on Yanmen Commandery. In accordance with Turkish customs, Princess Yicheng had married him as her husband's successor; having been well treated by