Yang Gao

Yang Gao (楊杲; 607 – 11 April 618),^[1] nickname Jizi (季子), was an imperial prince of the Chinese Sui dynasty. He was the youngest son of Emperor Yang.

^ Volume 185 of Zizhi Tongjian indicated that the palace revolt against Yang Guang (Emperor Yang) began on the yimao day of the 3rd month of the 14th year of the Da'ye era of his reign, and that Yang Gao was killed the next day (i.e. the bingchen day). The date corresponds to 11 Apr 618 on the Julian calendar. The volume also indicated that Yang Gao was 12 (by East Asian reckoning) when he was killed by Pei Qiantiong. (帝爱子赵王杲，年十二，在帝侧，号恸不已，虔通斩之...) Thus by calculation, Yang Gao should be born in 607.

[1] Volume 185 of Zizhi Tongjian indicated that the palace revolt against Yang Guang (Emperor Yang) began on the yimao day of the 3rd month of the 14th year of the Da'ye era of his reign, and that Yang Gao was killed the next day (i.e. the bingchen day). The date corresponds to 11 Apr 618 on the Julian calendar. The volume also indicated that Yang Gao was 12 (by East Asian reckoning) when he was killed by Pei Qiantiong. (帝爱子赵王杲，年十二，在帝侧，号恸不已，虔通斩之...) Thus by calculation, Yang Gao should be born in 607.

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