Neferefre Isi (; also known as Raneferef, Ranefer and in Greek as , ) was an ancient Egyptian pharaoh of the Fifth Dynasty during the Old Kingdom period. He was most likely the eldest son of pharaoh Neferirkare Kakai and queen Khentkaus II. He was known as prince Ranefer before he ascended to the throne. Neferefre started a pyramid for himself in the royal necropolis of Abusir called Netjeribau Raneferef, which means "The bas of Neferefre are divine". The pyramid was never finished, with a mason's inscription showing that works on the stone structure were abandoned during or shortly after the king's second year of reign. Together with the sparsity of attestations contemporaneous with his reign, this is taken by Egyptologists as evidence that Neferefre died unexpectedly after two to three years on the throne. Neferefre was nonetheless buried in his pyramid, hastily completed in the form of a mastaba by his second successor and presumably younger brother, pharaoh Nyuserre Ini. Fragments of his mummy were uncovered there, showing that he died in his early twenties. Little is known of Neferefre's activities beyond laying the foundations of his pyramid and attempting to finish that of his father. A single text shows that Neferefre had planned or just started to build a sun temple called Hotep-Re, meaning "Ra is content" or "Ra's offering table", which possibly never functioned as such given the brevity of the king's reign. After his death, Neferefre might have been succeeded by an ephemeral and little-known pharaoh, Shepseskare, whose relation with Neferefre remains highly uncertain and debated. Sources Contemporaneous There are very few archaeological sources contemporaneous with Neferefre, a fact which is now seen by Egyptologists, including Miroslav Verner, to imply a very short reign. Verner knew of only one inscription dated to his rule. It was left by the builders of his pyramid on a corner block at the end of the corridor leading to the pyramid substructures. The inscription was written on the fourth day of the Akhet season in the year of first occurrence of the cattle count, an event consisting of counting the livestock throughout the country to evaluate the amount of taxes to be levied. It is traditionally believed that such counts occurred every two years during the Old Kingdom although recent reappraisals have led Egyptologists to posit a less regular and somewhat more frequent count. Therefore, the inscription must refer to