Sekhemkhet was an ancient Egyptian king (pharaoh) of the 3rd Dynasty during the Old Kingdom. His reign is thought to have been from about 2648 BC until 2640 BC. He is also known under his later traditioned birth name Djoser-tety and under his Hellenized name Tyreis. Sekhemkhet was probably the brother or eldest son of king Djoser. Little is known about this king, since he ruled for only a few years. However, he erected a step pyramid at Saqqara and left behind a well known rock inscription at Wadi Maghareh.

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.