 Li Sizhao was an adoptive nephew; Kang Junli and Shi Jingsi were clearly not adopted by Li Keyong, hence their different surnames.Of the other ones mentioned in the novel, Li Cunzhi (李存直) was probably based on the homonymous Li Cunzhi (李存質); while Li Cunjiang (李存江), Li Cunlong (李存龍), Li Cunhu (李存虎), Li Cunbao (李存豹) and Li Cunshou (李存受) are not found in history and might be based on Li Cunjin, Li Siben (李嗣本), Li Si'en (李嗣恩), Li Cunzhang and Li Cunshen.In the novel, Li Cunxiao is the 13th grand-protector and the main character.