Sui Wendi Yang Jian was the founding emperor of the Sui Dynasty and one of the few Mingjun. Yang Jian's father was the twelve generals of the Northern Zhou Dynasty, and he had a high position. This provided Yang Jian with a good background for the future. It didn't take much time for Yang Jian to become the important minister of the Northern Zhou Dynasty. He assisted several emperors of the Northern Zhou Dynasty and accumulated contacts and power. Therefore, Yang Jian usurped the throne, and the Northern Zhou royal family had no resistance.
Here, Yang Jian’s younger brothers play different roles. Yang Jian has four younger brothers, Yang Zheng, Yang Zan, Yang Song and Yang Shuang. The first two are Yang Jian’s own brothers, both of whom were born by Lu Kutao. The second child, Yang Zhengying, died young and died before Yang Jian usurped the throne. The youngest Yang Zan is different. He and Yang Jian are facing each other. Yang Jian wants to usurp the throne. Yang Zan firmly opposes him to do so, and the two brothers become enemies. The relationship between the two of
is similar to that of Li Jiancheng and Li Shimin. Yang Zan once designed to murder Yang Jian, but unfortunately he did not succeed. Yang Jian became the emperor, but Yang Zan still looked like he wanted Yang Jian to die quickly, and then he helped the Northern Zhou Dynasty revive. Yang Zan's wife is the sister of Emperor Wu of the Northern Zhou Dynasty, and Yang Zan himself is loyal to the Northern Zhou Dynasty. The relationship between the two brothers continued to deteriorate. In the end, Yang Zan died suddenly. I don't know if there is Yang Jian in it.
Yang Song was born weak and sick, and died earlier than his second brother. The fifth Yang Shuang and Yang Jian had the best relationship, and he also stood firmly beside Yang Jian. Yang Jian's plan to usurp the throne received his full support. After the establishment of the Sui Dynasty, Yang Shuang was worshipped as a general. In the battle against the Turks, Yang Shuang broke the Turkic camp twice. It is a pity that he suffered from an incurable disease at the age of 25 and died young.
So when Emperor Sui Yang fell, Yang Jian's four younger brothers were gone, so naturally there was no way to save the Sui Dynasty. And their descendants are not many. After Yang Song and Yang Zhengwu, Yang Shuang has only one son, and Yang Zan has 6 sons. These Yang Jian's nephews were mediocre and embarrassed. So when Emperor Yang Guang of Sui Dynasty came to chaos, he did not stand up to stop him. After Yang Guang was killed, the Sui clan was hunted down and few people survived.