Sus armas: en campo de plata, dos leones, rampante y contrarampante, sosteniendo una mano derecha, cortada en la muñeca, de gules, y en la base un bote con ocho remos, de sable.

Flaherty / O´Flaherty

Los O'FLAHERTY poseían el territorio oriental de Lough Corrib hasta el siglo XIII en que, presionados por la penetración anglo-normanda en Connacht, se corrieron hacia el oeste, al otro lado de aquel lago, donde se establecieron. El caudillo de este clan era conocido como Señor de Moycullen y de Iar-Connaght, distrito que iba desde Killary Harbour hasta la bahía de Galway.

O'Hart dice que los O'FLAHERTY son de la línea de Heremon, descendientes de Duach Teang Umh, hijo de Fergus, nº 91 en el pedigree de los O'Connor, reyes de Connaught.

The first O'Flaherty, known in the Irish as ua flaithbhertaig, is mentioned in the annals of Ireland in the year 1034 - Muireadhach Ua Flaithbheartach, Lord of Ui-Briuin-Seola, a descendant of the Muinter Murchada and the Ui Briuin clans.

Muireadhach O'Flaherty ruled his clan as a high chief (or "low king") and claimed his royal blood through many an Irish hero. He united many of the descendants of the the Ui Briuin tribes in the area east of Loch Corrib near the western coast of Ireland.

These O'Flaherty tribes were nominally subjunct to the tribe of Sil Murray, the O'Connors, but they were also fiercely independent. The O'Flaherty tribes who dominated the area around Galway Bay served as the Admirals in the forces of the O'Connor dynasty during the 11th and 12th centuries. In the year 1092, Flaherty O'Flaherty briefly siezed the Kingdom of Connaught from Ruadri O'Connor, and proclaimed himself Ard Ri of Ireland. However, discovering the better part of valor, he chose not to hold the throne, eventually conferring the Kingship on Muirchertach O'Connor. Flaherty O'Flaherty died in battle, slain by the MacLochlainn tribe in the year 1098.

The name Flaherty or O´Flaherty in Ireland is always associated with County Galway in the West of the country. It was in Galway near Lough Corrib that the Sept became established, leaving Aughnanure Castle as their legacy. The Gaelic form of the name was O'Flaithbheartaigh which translates as 'bright ruler'.