Sanakht is the Horus name of an ancient Egyptian king (pharaoh) of the Third Dynasty during the Old Kingdom. His chronological position is highly uncertain, and it is also unclear under which Hellenized name the ancient historian Manetho could have listed him. Many Egyptologists connect Sanakht with the Ramesside cartouche name Nebka. However, this remains disputed because no further royal title of that king has ever been found; either in contemporary source or later ones. There are two relief fragments depicting Sanakht originally from the Wadi Maghareh on the Sinai Peninsula.

Djoser was an ancient Egyptian pharaoh of the 3rd Dynasty during the Old Kingdom, and was the founder of that epoch. He is also known by his Hellenized names Tosorthros and Sesorthos. He was the son of King Khasekhemwy and Queen Nimaathap, but whether he was also the direct successor to their throne is unclear. Most Ramesside king lists identify a king named Nebka as preceding him, but there are difficulties in connecting that name with contemporary Horus names, so some Egyptologists question the received throne sequence. Djoser is known for his step pyramid, which is the earliest colossal stone building in ancient Egypt.