St. Áed of Leinster is styled Áed Dub, from his dark features, whilst Áed of Ossory was fair, hence the affix finn (fionn = fair).
St. Áed Leinster ditulis dengan Áed Dub, dari sisi gelapnya, sementara Áed dari Ossory dari adil, maka membubuhkan finn (fionn = adil).