Yang Hao (Sui dynasty)

In 597, angry and jealous over Yang Jun's favor for his concubines, Princess Cui poisoned melons that he was eating.

Yang Jun grew ill, and went back from his defense post at Bing Province (并州, roughly modern Taiyuan, Shanxi) to the capital Chang'an for treatment.

There was no evidence that suggested that Yuwen Huaji permitted Yang Hao to actually exercise any imperial powers.

Yuwen Huaji soon abandoned Jiangdu and led the remaining Sui court and the elite Xiaoguo Army (驍果) north.

During the procession, Yang Hao was effectively put under house arrest at the mobile executive bureau (尚書省, Shangshu Sheng), under heavy guard.