According to Dobrev , whose image is the Sphinx based off of ?
In 2004 , Vassil Dobrev of the Institut Français d'Archéologie Orientale in Cairo announced that he had uncovered new evidence that the Great Sphinx may have been the work of the little - known Pharaoh Djedefre ( 2528–2520 BC ) , Khafra 's half brother and a son of Khufu .