George Hamartolos or Hamartolus was a monk at Constantinople under Michael III (842–867) and the author of a chronicle of some importance. Hamartolus is not his name but the epithet he gives to himself in the title of his work: "A compendious chronicle from various chroniclers and interpreters, gathered together and arranged by George, a sinner ". It is a common form among Byzantine monks. German 19th century scholar Karl Krumbacher protested against the use of this epithet as a name and proposed the form Georgios Monachos.
