Danes in Tipperary / Arra

Copyright - University of Wisconsion / Milwaukee 

The above is an extract from a map located here.

I have written about a similar map that Rev. John Gleeson used in both The History of Ely O'Carroll Territory and also Cashel of the Kings. It looks to me as if this map was the basis of both.

Those maps located "Danes" in what is now the half-barony of Arra or probably better known as the Burgess / Portroe / Ballina area in County Tipperary.

I have written about this map here & about possible Viking settlements on Lough Derg here.

Since Rev. Gleeson's extracts only covered the Tipperary area and seemed to only include prominent surname / clans in that area, it could have been possible that the "Danes" referred to the surname Dane or Dean even if that was not a well known name in that area. The 1901 and 1911 census actually record few of either name in the entire country at that time.

However this new map covers the whole of Ireland and if you see the extract above it also locates Danes at Limerick.
Other places on the larger map where it locates Danes includes Wexford, Waterford, Cork, Athlone, Lough Neagh, Belfast Lough, Strangford Lough, Dublin and Wicklow.

So I think this conclusively shows that it is referring to Danes or Vikings rather than a surname. I know that Brian Boru and his descendents based at Kincora would have been in close contact with the Danes but this location in Arra seems to be far enough way that isn't just a mistake for this location or a mapping error due to not having enough room to place it elsewhere.

I have yet to come across any primary references to Danes locating in this area although Gleeson does say the following

"The tribe land of O'Sextons lay along the coast of Lough Derg in the Shannon between Dromineer and Castlelough; it was contiquous to the tribe land of the O'Glissane (Gleeson), whose land lay between Castlelough and Killaloe on the Tipperary side of the lake. The Danes settled in the neighbourhood of the O'Sextons, which may explain the fact that the name is now extinct in North Tipperary, but is found in West Clare". 
From "The history of Ely O'Carroll Territory" by Rev. John Gleeson. Pg 52/53

On a local level I have come across a field name in the Castletown area known as The Danes 'Deans" but I don't have an extact location. That looks to be the next step in this research.