Userkaf
Userkaf (meaning "His soul is strong") was the founder of the Fifth dynasty of Egypt and the first pharaoh to start the tradition of building sun temples at Abusir. His name means "his Ka (or soul) is powerful". He ruled from 2494-2487 BC and constructed the Pyramid of Userkaf complex at Saqqara.
Family
Userkaf may have been a grandson of Djedefre by his daughter, Neferhetepes. His father is unknown, while some believe his mother to have been Khentkaus I (or his wife before he inherited the throne).
Another of Userkaf's wives was the similarly named Queen Neferhetepes, known to be the mother of Sahure. Userkaf may also have been the father of Neferirkare Kakai, a son by Khentkaus I.
Another less common view, in concordance with a story of the Westcar Papyrus, is that the first three rulers of the fifth dynasty were brothers—the sons of a woman named Raddjedet.
Thus, Sahure, Userkaf's successor was most likely his son. Furthermore, a strong argument in support of the theory that the first four kings of the fifth dynasty were closely related is that we know several officials who served as priests in the funerary cults of several of these kings: