Duinseach ingen Duach, Queen of Tara, fl. 500.
Background
Duinseach was a daughter of Dauí Tenga Uma, King of the Connachta. She was married to King Muirchertach mac Muiredaig (died 532), King of Tara. They were ancestors of the Cenél nEógain.
Battle of Seaghais
