 According to the "History Of County Longford" (published 1898), in 858 BC an army composed of Lagenians, Connacians, and the southern Hy Nialls, marched to Fiachla, under the conduct of Mael-saghlin, the son of Maelrony, and encamped at Moydumha, in the vicinity of Ardagh.The ancient name of this parish was Kilmodhain, or Kilmacdhumha, so called from being the "kil" or cell of St. Modhain, or Modiud the Simple, whose feast is celebrated on 12 February, according to the "Lives of the Saints".St.