Thamphthis

Thamphthis is the hellenized name of an ancient Egyptian ruler (pharaoh) of the 4th Dynasty in the Old Kingdom, who may have ruled under the name Djedefptah or Djedefkaf for between two and nine years. His original Egyptian name is lost, but it may have been Djedefptah according to Egyptologists like William C. Hayes, or Djedefkaf according to other Egyptologists. Thamphthis is one of the shadowy rulers of the Old Kingdom, since he is completely unattested in contemporary sources. For this reason, his historical figure is discussed intensely by historians and Egyptologists.