O.B.I.T., an episode of the original "The Outer Limits" television show
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).
Her obit in the Annals of the Four Masters give her year of death as 789 as Lear Bhanbhan, airchindeach Cluana Boireann, while the Annals of Clonmacnoise under 791 reads Lerveanvan, abbesse of Cluonbardann (Clonburren).