Norse longships sailed up the Shannon and raided the monasteries on the islands of Lough Ree, including Clonmacnoise (attacked multiple times). The Annals record the Vikings "plundering and burning" the islands. These raids deep into the Irish interior via the Shannon system demonstrated the reach of Viking power.
Aubrey generates in-depth historical research for any location in Britain — drawing on Domesday records, scheduled monuments, Victorian OS maps, geological data and archaeological archives to tell the full story of a place.
Research a location near Roscommon