Raneferef was the eldest son of Neferirkare and Khentkaus II. and he is also known as Neferefre. According to available proofs an unfinished pyramid was build for this ruler. But Raneferef died early (he was about 20 years old).
Pyramid of Raneferef was rebuilt into a mastaba by his younger brother Nyuserre and in its chantry temple an papyraceous archive and collection of stone statues were discovered amoung others. An interesting fact is, that 200 priests served in his little chantry temple.
Raneferef was worshipped even 200 years after his death. Various celebrations and festivals were staged because of him. However, he was gradually forgotten and his chantry temple was left.