 His main argument is the presence of seals of Sheshi and of two kings of the mid 13th Dynasty Sekhemrekhutawy Khabaw and Djedkheperew in the Egyptian fort of Uronarti in Nubia.The fort of Uronarti was abandoned at some point in the 13th Dynasty, an event which Ryholt dates to the reign of Djedkheperew given the lack of seals attributable to subsequent kings.Ryholt thus proposes that Sheshi reigned from c. 1745 BC until 1705 BC and was a contemporary of Khabaw and Djedkheperew.