Manetho
The New Kingdom lists left out some rulers. The list prepared for Seti I, has 76 kings from the First Dynasties to the Fourteenth, but leave out the Hyksos rulers and those linked to Akhenaten. The Saqqara list also does not include them in its list of 58 names. These names were left out for religious, rather than political reasons. If Manetho used these lists at all, he would have been unable to get all of his information from them.