Dún Laoghaire-Rathdown

Per chevron argent and vert, in chief an ancient Irish crown proper between in the dexter a slip of oak of the second fructed of the third and in the sinister a trefoil slipped also of the second, in base of waves of the sea barry wavy of four of the first and azure a Viking longship sail set oars in action also proper, Motto: Ó Chuan go Sliabh.
== Sources ==
Grants and Confirmations of Arms Vols, V pt 2, W and X, img. 200
Category:Dún Laoghaire-Rathdown
Category:Ireland