Máel Sechnaill mac Domnaill
High King of Ireland, King of Mide
Máel Sechnaill mac Domnaill, also called Máel Sechnaill Mór or Máel Sechnaill II (949 – 2 September 1022), was a King of Mide and High King of Ireland. His great victory at the Battle of Tara against Olaf Cuaran in 980 resulted in Gaelic Irish control of the Kingdom of Dublin.