Meret-Isesi was a Princess

Princess

Princess is the feminine form of prince . Most often, the term has been used for the consort of a prince, or his daughters....

 of Egypt

Egypt

Egypt , officially the Arab Republic of Egypt, Arabic: , is a country mainly in North Africa, with the Sinai Peninsula forming a land bridge in Southwest Asia. Egypt is thus a transcontinental country, and a major power in Africa, the Mediterranean Basin, the Middle East and the Muslim world...

, and she lived during 5th dynasty. Her father was Pharaoh

Pharaoh

Pharaoh is a title used in many modern discussions of the ancient Egyptian rulers of all periods. The title originates in the term "pr-aa" which means "great house" and describes the royal palace...

 Djedkare. Meret-Isesi appears as a King's daughter of his body in a relief which likely comes from Abusir.

The relief can be found on the Brooklyn Museum page for Mereret-Isesi. The caption identifies this princess as Kekheretnebti

Kekheretnebti

Kekheretnebti or Khekeretnebty was a Princess of Egypt, who lived during the Fifth Dynasty. Her father was Pharaoh Djedkare Isesi.Kekheretnebti was buried in a mastaba in the royal necropolis at Abusir, south-east of the mortuary temple of Niuserre. Her skeletal remains show that she was a slender...

(she was a sister of Mereret-Isesi), but the text clearly identifies her as Mereret-Isesi.