Try to find the spot where the photographer was standing.
Apparently this is the tomb of Feidlim Ua Conchobair (a.k.a. Fedhlim O'Connor) and is in the Dominican Priory in Roscommon which he founded in 1253.
The NIAH doesn't have an article on the Abbey itself, only the 19th Century graveyard in the grounds.
There is also an article from The Journal of the Kilkenny and South-East of Ireland Archaeological Society from 1866 called "Some Remarks on O'Connor's Tomb at Roscommon" which goes into the history of the different parts of the tomb.
He founded the Dominican Priory in 1253, died in 1275 and was Cathal of the Red Hands son. A biography at www.libraryireland.com/HistoryIreland/Death-Felim-OConnor...
Interesting discussion on Fergal Jennings' photostream
Sometimes the NLI is amazing! In 1799 -
And in 2013 via [https://www.flickr.com/photos/37681288@N00/] [https://www.flickr.com/photos/37681288@N00/9046001580/]
Some more background www.digitalheritageage.com/roscommonabbey/
A little reading tells; He appears to have been imposed on Connaught as a more malleable Lord than his brother Aedh (Hugh) and was mostly loyal to Henry III in return for quite possession of his few cantreds of the province. Aedh was an ally of William Marshall Regent of England in Henry's minority, and generally had the support of many Anglo Norman settlers jf not the King himself. Like his father Cathal he was happy to hold Connaught of the English King, to secure the succession of his son. Even if he was the grandson on Turlough and Nephew of Rory the last High King. He visited Henry III in England at least once, and took part in Henry's expeditions in Wales and Scotland to support him. He famously shared a bed with one rival Walter Dr Burgh, Earl of Ulster, one cold winter, and secured his support to expell the Fitzgerald from Connaught. He was for a time driven out of the province and took refuge with the O'Donnells. He was on e of the first to engage gallowglass from Scotland in his service (the McSorleys) and these are pictured on the tomb.. His more aggressive son (also Aedh or Hugh) took a policy of active resistance to the Anglo-Normans, tearing down castles etc. but came to a sticky end.
Boy I love the old history in Europe. 1253 in Canada has nothing like this.
Three inches of snow? A sign of Spring in Canada
The text accompanying this interesting 3DView seems to suggest that the fragment, propped between the 2nd and 3rd gallowglass relief has gone "missing". Certainly its not in the image of Ben Bulben which [https://www.flickr.com/photos/beachcomberaustralia] shares...
https://www.flickr.com/photos/20727502@N00 Fascinating in 3D ! I think that triangular fragment might be a wrong piece in the jigsaw; The right angle corner carving does not match anything else. It was only a crack in the 1799 drawing (link above).
Just fascinating! Thanks for the info.