The Chronicle of Manetho

Manetho was an Egyptian priest who made a work (all in Greek) over the Egyptian history in the 200s BC. All that is left are transcriptions made by Christian historians like, Africanus (300s AD) and Eusebius (3-400s AD). Copiers' mistakes and only Greek names reduces the historical value.
 

ruler's name

Flavius /
Africanus

Eusebius

IVth Dynasty
Soris Soris 28 -
Soufis Suphis 63 -
Soufis Suphis 66 -
Mencerehs Mencheres 63 -
Ratoiths Ratoises 25 -
BiceriV Bicheris 22 -
Sebercerhs Sebercheres 7 -
Qamfqis Tamphtis 9 48