Setnakhte was originally believed to have enjoyed a reign of only two years based upon his Year 2 Elephantine
stela but his third regnal year is reportedly attested in Inscription No. 271 on Mount Sinai. although the reading of the Year 3 inscription has been called into question "as only two strokes appear after “rnpt Hsbt,“ before damage obscures what could be another stroke." If his theoretical accession date is assumed to be II Shemu 10, based on the date of his Elephantine stela, Setnakhte would have ruled Egypt for at least two years and 11 months before he died, or nearly three full years. This date is 1 day removed from Twosret's highest known date of Year 8, II Shemu 9 (although Twosret is known to have ruled for a minimum of 6 more months at her mortuary temple at Gournah), and is based upon a calculation of Ramesses III's known accession date of I Shemu 26. Peter Clayton also assigned Setnakhte a reign of three years in his 1994 book on the Egyptian pharaohs. of Bakenkhunsu In a mid-January 2007 issue of the Egyptian weekly
Al-Ahram however, Egyptian antiquity officials announced that a recently discovered and well-preserved
quartzite stela belonging to the High Priest of Amun Bakenkhunsu was explicitly dated to Year 4 of Setnakhte's reign. On December 11, 2006, this stela had been discovered along the
Avenue of the Sphinxes in Luxor by Mansour Boraik who was excavating there. The
Al-Ahram article notes that this data: contradicts...the official record, which says Setnakhte ruled Egypt for only three years. According to the new information provided by the stela, Setnakhte's reign certainly lasted for four years, and may have continued for [a little] longer.
Zahi Hawass, the former Secretary General of Egypt's
Supreme Council of Antiquities, declared the discovery to be one of the most important finds of 2006 because "it adjusts the history of the 20th Dynasty and reveals more about the life of Bakenkhunsu."—the date of which is mentioned only halfway in the stela rather than at its start—is immediately followed by this proclamation: "There were no opponents against His Majesty, l.p.h., in all the lands." This reference to the defeat of Setnakhte's enemies implies that this specific date marked the termination of a conflict—presumably Setnakhte's struggle for the throne—which extended partly into his second year and means that Setnakhte's first year would have overlapped with Twosret's final year, if Twosret was his opponent. Therefore, he likely did not even rule Egypt in his theoretical first year and could only properly administer the country from sometime during his second year. In any event, there was an interregnum lasting at least a year in which no ruler controlled all of Egypt and Setnakhte's effective reign length should be reduced by a year from 4 to 3 years. Setnakhte's Elephantine stela touches on this chaotic period and refers explicitly to the expulsion of certain Asiatics, who fled Egypt, abandoning the gold which they had looted from Egyptian temples. It is uncertain the degree to which this inscription referred to contemporary events or rather repeated anti-Asiatic sentiment from the reign of Pharaoh
Ahmose I. Setnakhte identified with the God
Atum or
Temu, and built a temple to this God at
Per-Atum (Biblical
Pithom). After his death, Setnakhte was buried in
KV14 which was originally designed to be Twosret's royal tomb. His mummy has never been identified with certainty, although the so–called "mummy in the boat" found in
KV35 was sometimes identified with him, an attribution rejected by Aidan Dodson who rather believes the body belonged to a royal family member of
Amenhotep II of the
18th Dynasty. In any case, the mummy was destroyed in a looting in 1901, thus preventing any analysis of it. ==Monuments==