The Coláiste Chonnacht was founded in 1905 as a summer school by Conradh na Gaeilge.
The principal was Micheál Breathnach, with Máire Ní Tuathail as his assistant.
The school became known as Cliabhran Conradh na Gaeilge—the "cradle of the Gaelic League".
Among the people who visited the school were Douglas Hyde (later to become the first President of Ireland), Patrick Pearse, Éamon de Valera, Kuno Meyer (the renowned German Gaelic scholar), Padraig Ó Domhnallain, and other Irish writers visited the school frequently.
[2] The sisters left in 1990 owing to a drop in the number of vocations, and the school was handed over to a local committee.