The length of time the Hyksos ruled is unclear. The fragmentary Turin King List says that there were six Hyksos kings who collectively ruled 108 years, however in 2018 Kim Ryholt proposed a new reading of as many as 149 years, while Thomas Schneider proposed a length between 160–180 years. The rule of the Hyksos overlaps with that of the native Egyptian pharaohs of the Sixteenth and Seventeenth Dynasties, better known as the Second Intermediate Period.