Horbaef was a son of King Khufu and an unknown woman. He married his half-sister Meresankh II,[1] and they had two daughters, the ladies Nefertkau III and Nebty-tepites. They may have also had one son called Djaty. After Horbaef’s death, his widow Meresankh married a king, her other half-brother, either Djedefra or Khafre, and thus she became a queen consort. It’s possible that Djaty was a son of Meresankh’s second husband because he had a title "king’s son of his body", and Horbaef was a prince but never a king.
Horbaef was buried in the mastaba G 7410-7420 at Giza. Meresankh was also buried there.