Not only did the emperor act this way, wealthy families would also assign their family names to their servants, just as the Jia family does in the classic novel Dream of the Red Chamber.
不但皇帝如此，有錢人家買進來的奴婢，也和主人姓同樣的姓。像紅樓夢裡賈府的小廝，全都姓賈。