The location of the pyramid attributed to Neferhetepes, however, strongly suggests that she may instead have been Userkaf's wife. If so she should be identified with the Neferhetepes who is the mother of Userkaf's successor and likely son, Sahure. A relief from Sahure's causeway depicts this king and his queen together with the king's mother, identified as a Neferhetepes, which very likely makes her Userkaf's wife. Like Grimal, Jaromír Malek sees her as a daughter of Djedefre and Hetepheres II. Following this hypothesis, Mark Lehner also suggests that Userkaf's mother may have been Khentkaus I, an idea shared by Arielle Kozloff.