The O’Donnellan Family
(Crest No. 291. Plate 18.)
THE O’Donnellan family is descended from Milesius, King of Spain, through the line of his son Heremon. The founder of the family was Brian, son of Eocha Moy Veagon, King of Ireland, A. D. 350. The ancient name was Donnallan and signifies “Howling.” The head of the clan was entitled the Prince of Tirmaccarthine, and the possessions of the clan were located in the present County of Antrim, in the barony of Leitrim, in the County of Galway.
(Crest No. 294. Plate 54.)
Another branch of this name descended from Fiacha, son of Colla Vais, of the Hy Many tribe, and King of Ireland, A. D. 315. The possessions of these Donelans were located in the present County of Roscommon.