The manuscript also contains a calendar from 777 to 835 (folios 5r–7r) for the dating of Easter, using the unusual 19-year cycles of Theophilus of Alexandria.
Annales School | Annales Fuldenses | Annales | Annales Laureshamenses | Annales de la Société Entomologique de France | Annales Cambriae |
Ludwig Traube believed him to be identical with the Abbot Cellanus who's obit is recorded in the Annales Laureshamenses under 706; and was probably the Cellan mac Sechnusaigh, sapiens, recorded in the same year in the Annals of Ulster (pp.96-119, 1900).