Máel Sechnaill mac Máele Ruanaid

Máel Sechnaill mac Máel Ruanaida (Modern Irish: Maolsheachlann Mac Maolruanaidh), also known as Máel Sechnaill I, anglicised as Malachy MacMulrooney (died 27 November 862) was High King of Ireland. The Annals of Ulster use the Old Irish title rí hÉrenn uile, that is "king of all Ireland", when reporting his death, distinguishing Máel Sechnaill from the usual Kings of Tara who are only called High Kings of Ireland in late sources such as the Annals of the Four Masters or Geoffrey Keating's Foras Feasa ar Éirinn. According to the "Grand History of the Celts", a traditional book of facts and folklore, Mael Sechnaill was the husband of Mael Muire, the granddaughter of the legendary Alpin, a 9th-century king of Dalriada.