Donegal people sometimes have heated debates about officially changing the name of their county to Tír Chonaill. Many inhabitants of the county who are very proud of their local history wonder why the name is not easily changed while others, probably a minority (but a sizeable one), point out that the peninsula of Inishowen and the flat lands around Lifford were not part of historical Tír Chonaill and so the county name should remain Donegal. The answer to this question is that both arguments are correct, depending on what period of history people are interested in. In medieval times up until around the year 1350 AD Inishowen and the plains to the south were actually part of the lordship of Tyrone. Inishowen (from Irish Inis Eógain or Eoghan's Island), was actually the original territory of the Cenél nEógain people before they struck out across Lough Foyle in medieval times to gradually conquer the modern counties of Derry, Tyrone and Armagh from the original Ulster people who were dispossessed and corralled east of Lough Neagh and the river Bann. However, after the year 1350 the Cenél Conaill family of O'Doherty conquered the Inishowen peninsula and as sub-chieftains of the O'Donnell lords of Tír Chonaill, the Inishowen peninsula did indeed become an integral part of the early modern lordship of Tír Chonaill. As an early modern historian I would naturally enough like the county name to be changed to Tír Chonaill, but can understand why others prefer things to stay as they were, although I do think these people like to conveniently ignore the O'Doherty conquest of Inishowen for the Cenél Conaill.
Close to my granduncle's farm near Kilmacrennan in Co. Donegal is a ruined farmhouse in the townland of Skreen.