 The fragment which deals with Cerball's lifetime ends in the early 870s, so that the last fifteen years of his life are missing.Joan Radner, editor and translator of the modern edition of the "Fragmentary Annals", argues that these were compiled at the court of Cerball's great-great-grandson Donnchad mac Gilla Pátraic.Although called annals, these are closer to narrative history and are derived from a number of sources.