Irish Translantion – “Glasloch” – “Green Lake”
Council Area – Monaghan County Council
Glaslough is a picturesque village and townland located 6 miles from Monaghan Town. It is of great historic and architectural interest. For the last 300 years the economic and social development of the village has been associated with the Castle Leslie Estate, home to the Leslie family. The first member of the Leslie family to arrive in North Monaghan was John Leslie. He purchased the land around Glaslough from Sir Thomas Ridgeway, “Treasurer of Arms to the English Throne in Ireland”. Prior to this the land belonged to the McKenna and McMahon families whose family names are still important today.