In 2004, evidence that Djedefre is responsible for the building of the Sphinx at Giza in the image of his father was reported by the French Egyptologist Vassil Dobrev.
În 2004, dovezi ale ipotezei că Djedefra ar fi construit Sfinxul in chipul tatălui său, au fost prezentate de egiptologul francez Vassil Dobrev.