 The book also argues strongly that the Sixteenth dynasty of Egypt was made up of poorly attested Theban kings such as Nebiriau I, Nebiriau II, Seuserenre Bebiankh and Sekhemre Shedwast who are documented in the last surviving page of the Turin Canon rather than minor Hyksos vassal kings in Lower Egypt, as was generally believed.Among the most significant discussions is Ryholt's evidence that Sekhemre Khutawy Sobekhotep rather than Ugaf was the first king of Egypt's 13th Dynasty, and a discussion of the foreign origins of the Semitic 13th Dynasty king named Khendjer—whose reign lasted a minimum of 4 years and 3 months based on dated workmen's control notes found on stone blocks from his pyramid complex.The most controversial conclusion concerns the identity and dating of 14th Dynasty.