Czech archaeologists have discovered a previously unknown burial ground at the site of Pharaoh Neferefre's tomb in Abu Sir, southwest of Cairo. According to Al Jazeera, the tomb is believed to belong to Queen Khentakawess III, the pharaoh's wife.

The Czech Institute of Egyptology has been excavating the site for nearly 55 years. Czech archeologists uncovered Neferefre's tomb complex in the 1980s and '90s.

Khentkawess would have ruled alongside her husband roughly 4,500 years ago, during Egypt's fifth dynasty.  Though she could technically be the pharaoh's sister, BBC reports that Miroslav Barta, head of the Czech Institute of Egyptology mission which made the discovery, said that the location of the queen's tomb made them believe that she was the wife of the pharaoh.

Furthermore, her name and rank was found engraved into the walls of her tomb. Antiquities minister Mamdouh al-Damaty said in a statement that for the "first time we have discovered the name of this queen who had been unknown before the discovery of her tomb."

CBC reports that the rank inscription, "mother of the king," makes it likely  that the queen was the mother of Pharaoh Menkauhor, the successor of Pharaoh Nyuserre. Archeologists believe this to be true because it appears the queen was buried during Nyuserre's reign.

He continued, "This discovery will help us shed light on certain unknown aspects of the Fifth Dynasty, which along with the Fourth Dynasty, witnessed the construction of the first pyramids."

Within the tomb, archaeologists found 30 utensils, 24 of which were made of limestone and four of copper.