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Rock Of Dunamase

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Contact details


Portlaoise Tourist Office, James Fintan Lawlor Avenue, Portlaoise, Laois, Republic of Ireland
T: +353(0)578621178

The Rock of Dunamase is a popular historic site found just outside Portlaoise in County Laoise. It was the location of an early Christian settlement known as Dun Masc and later became an important Anglo Norman fortification.

The Rock of Dunamase is a popular historic attraction found overlooking the valley of the O’Moores, just outside Portlaoise, County Laoise. The significance of the site dates back to the early Christian period, when it was known as Dun Masc, or Masc’s Fort. The Vikings pillaged the settlement in 842. Later, in the 12th Century, Dunamase became an important Anglo Norman fortification and was part of Aoife’s dowry when she married Strongbow in 1170.

Despite the castle’s ruined state, visitors can get a sense of its former grandiosity and also have the opportunity to take in stunning views of the surrounding countryside.