Yang Yong.

About Yang Yong

Yang Yong, Xianbei name Xiandifa (睍地伐), also known by his posthumous title of Prince of Fangling (房陵王), was a crown prince of Sui dynasty. He was the oldest son of Emperor Wen and Empress Dugu. He drew ire from his parents for wastefulness and having many concubines, while his younger brother, Yang Guang, whom Emperor Wen and Empress Dugu thought lacked these faults, was favored by them. In 600, Emperor Wen deposed Yang Yong and replaced him with Yang Guang. Subsequently, after Emperor Wen died on 13 August 604, Yang Guang had Yang Yong put to death.