O'Donnellan, Donnellon, Donlon, Donlan, O'Domhnallain family coat of arms.
Blazon: Argent an oak tree eradicated proper, on the sinister side a slave sable
chained to the stem gules. Crest: On a mount proper a lion rampant or. Motto: Omni Volontia Major
From "Donnelly
Coat of Arms"