Hiberno-Danish Coins: The Danish Kings of Ireland

Courtesy Medievalists.net: "“It must surprise those who examine the history of Ireland that so little appears known respecting the social position of those Scandinavians who under the common name of Ostmen or of Danes, occupied our principal seaports from the ninth to the twelfth century, and that even local historians are silent respecting the civil and religious institutions, the works and monumental remains of a people, who not only inhabited and ruled over Dublin for more than three hundred years, but who, if not the founders of the city, were unquestionably the cause of its metropolitan supremacy..." The Danes are generally credited with developing Dublin into a major city. The full PDF file may be viewed here.