 The main source about his life came from his biography, inscribed on the "tomb III" in Asyut.It is generally assumed that Tefibi was the second of a trio of related nomarchs datable to the Herakleopolite period; he was likely preceded by his father Khety and followed by his son, also named Khety.He was member of a long line of nomarchs in Asyut with strong bonds of loyalty and friendship towards the Herakleopolite dynasty, and seems that he continued the policy of good governance pursued by his father Khety I