There are several saints of this name in the Celtic calendars, such as Caelan of Cilleo, celebrated June 30; Caelan of Doire or Doire-Chaolain, June 19; Caelan of Echinis, Sept. 25; and Caelan of Tigh-na-manach, Oct. 29. But the most notable is Caelan of Inis - Cealtra, July 29; who (under the names Caelan, Coelan, or Chilian) is usually considered the writer of the Life of St. Brigida, which stands as the sixth memoir of that saint in Colgan's Trias Thaumaturgac . He was a; monk of Inis-Cealtra (now Inishcaltra, County Clare), and probably flourished after the beginning of the 8th century. See Colgan, Tr. Thaum. p.'596, 597; O'Donovan, Four Mast. i, 187; O'Hanlon, Irish Saints, ii, 13; Lanigan, Eccl. Hist. Ir. i, 381,