Tausret, also spelled Tawosret or Twosret (d. 1189 BCE) was the last known ruler and the final pharaoh of the Nineteenth Dynasty of Egypt.

The document is a hieratic ostracon or inscribed potshard and contains an announcement to the workmen of Deir al Madinah of the king's actions.

The ostracon's information was essentially a royal order for the workmen to stop all further work on Bay's tomb since the latter had now been deemed a traitor to the state.

[12] Aidan Dodson believes that Tausret engineered Bay's downfall so that she would have total control at the palace court and need no longer share power with her political rival.

As Dodson writes: Although [this act was nominally] carried out in the name of the still young Siptah, one can probably safely assume that the initiative was taken by Tawosret, signaling her intention to share power no longer with her erstwhile colleague in regency [Bay].

[14] Tausret's highest known date is a Year 8 II Shemu day 29 hieratic inscription found on one of the foundation blocks (FB 2) of her mortuary temple at Gournah in 2011 by the University of Arizona Egyptian Expedition.

Although Tausert’s reign (including her regency for Siptah) has been understood commonly as being seven years (as stated by Manetho in his [Aegyptiaca] History), or eight at the most, the inscriptions on the foundation blocks show otherwise.

"[19] Tausret's reign ended in a civil war, documented in the Elephantine stela of her successor Setnakhte, who became the founder of the Twentieth dynasty.

[23][24] Pearce Creasman writes in 2013 that Tausret's 20th dynasty successors felt the overwhelming need to usurp her KV14 tomb and comprehensively destroy her mortuary temple.

Therefore, "the founder of the 20th Dynasty, Sethnakht, or his long-ruling son, Ramesses III, set out against Tausret's memory and its physical manifestations.

This dramatic refutation of the legitimacy of their unrelated 19th Dynasty predecessor likely made it easier for their own lineage to take root and overpower what must have been a substantial number of other potential claimants to the throne.

[26] A mummy found in KV35 and known as Unknown Woman D has been identified by some scholars as possibly belonging to Tausret, but there is no other evidence for this other than the correct Nineteenth Dynasty period of mummification.