Home» Monastic Sites» Monaghan» Carrickmacross Monastery Carrickmacross Monastery Monaghan Early Irish 9th Century Ruins About This Site Early monastic site, founded before 845 Historical Information Founded:before 845 Alternative Names: Cell-roisFeara-rois Other Sites in Monaghan Caldavnet Holy Well Located on a N-facing slope. A well, which is known locally as St Dympna’s Well or St Davnet’s Well, has… Learn More Camaghy,Tonaneeve Mass Rock Located in the valley of a rapid NW-SE stream, it is situated in Tonaneeve townland c. 5m from the E… Learn More Clochensis Friary Augustinian Friars Learn More Clones Abbey Early monastic site, Gaelic monks, founded before 549/50 by St Tigernach Augustinian Canons Regular founded after 1140? Augustinian Canons Regular… Learn More