^Mac Annaidh, Séamas, ed. (2001). Illustrated Dictionary of Irish History. Dublin: Gill and Macmillan.
ISBN0717135365.
^Simms, Katherine (2000). "Late Medieval Tír Eoghain: The Kingdom of 'the Great Ó Néill'". In Dillon, Charles; Jeffries, Henry A. (eds.). Tyrone: History & Society. Dublin: Geography Publications.
ISBN0-906602-71-8.
^Mac Annaidh, Séamas, ed. (2001). Illustrated Dictionary of Irish History. Dublin: Gill and Macmillan.
ISBN0717135365.
^Simms, Katherine (2000). "Late Medieval Tír Eoghain: The Kingdom of 'the Great Ó Néill'". In Dillon, Charles; Jeffries, Henry A. (eds.). Tyrone: History & Society. Dublin: Geography Publications.
ISBN0-906602-71-8.