One is from the name; That is, in the late Qing Dynasty and the early Republic of China, we took a word from the elders' names as the surnames of our descendants. This is caused by Manchu people's long-term "calling by their first names without giving their surnames" and forgetting their ancestral surnames;
Second, in the Qing Dynasty, the English Han people joined the Eight Banners and became standard bearers. It became Manchu after the Republic of China.