In Druí Ua Cárthaigh (died 1097) was Chief Poet of Connacht.
The Annals of the Four Masters state, sub anno 1097, that "The Druid Ua Carthaigh, chief poet of Connaught, was killed by the Connaughtmen themselves."
A previous member of the family, Muireadhach Ua Cárthaigh, was in 1067 "drowned in Loch Calgaich."
In 1131 "Feardana Ua Cárthaigh, chief poet of Connaught", was killed at the battle of Loch Semhdighdhe in Mide.
The Ua Carthaigh (anglicised Carthy) family were located in Ui Maine, though apparently not members of the dynasty.