Daniel F. Akerson Biography, a historical manuscript of the Qing Dynasty, records:

In the 12th year of Kangxi, Wu Sangui rebelled and the capital changed. Some people, including Yang Qilong, pretended to be Prince Zhu San, changed Guangde privately, and named his disciples "Zhongxing officers and soldiers". They split the cloth strips, wrapped their heads in white and covered themselves in red, conspiring for a crisis. His disciples, including Huang Ji, Chen Yi and more than 30 others, gathered in the home of Zheng Huang Qi and Zhou Gongzhi of Gongzhi, and lived in Gulou West Street with Bo Quanbin as their teacher. Straight out, the ruler of Yidu, Zu Yonglie, denounced the change and raised the dragon to raise the fire. When Oxen walked past the Drum Tower and saw the fire, he stood up and looked at the house. All the thieves were exposed in armour, so they reported to the Ministry of War Shangshu Mingzhu and Tu Hai, the commander-in-chief. Yong Lie and his deputy know that Luigi Hari led the army to surround the hotel. The thief set fire to the fire, and it flowed like rain. Oxen entered first, beheaded more than ten people, and escaped, benefiting and auspicious, knowing that he was punished and fled alone. After seven years, he stationed in Fengxiang, arrested the dragon and sent it to the capital for punishment.

As can be seen from this period of history, there are only more than 30 people in Yang Qilong, which is limited to the immediate family of the Duke of Zhou and has not spread to the palace.