This report gives a little more detail on the discovery of the tomb of the princess, Sheret-Nebty:
“The tomb of an ancient Egyptian princess has been discovered south of Cairo hidden in bedrock and surrounded by a court of tombs belonging to four high officials.
Dating to 2500 B.C., the structure was built in the second half of the Fifth Dynasty, though archaeologists are puzzled as to why this princess was buried in Abusir South among tombs of non-royal officials. Most members of the Fifth Dynasty’s royal family were buried 1.2 miles (2 kilometers) to the north, in the central part of Abusir or farther south in Saqqara.
The researchers aren’t sure whether the remains of the princess are inside tomb, as the investigation is still in progress, Miroslav Bárta, director of the mission, told LiveScience. Even so, they also found several fragments of a false-door bearing the titles and the name of Sheretnebty, the king’s daughter” – via LiveScience.
You can read more here.