Máel Sechnaill
Máel Sechnaill mac Domnaill (), also called Máel Sechnaill Mór or Máel Sechnaill II (949 – 2 September 1022), was 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.