Born in Portlaoise, Triona Marshall began her studies of the harp in the Royal Irish Academy of Dublin. She continued her studies in the Konninglijk Conservatorium in Den Haag with Edward Witsenburg for 4 years followed by 2 years in The Royal College of Music in London with Daphne Boden.
After her studies Triona became principal harpist with the RTE Concert Orchestra in Dublin, a position she held for 5 years before changing musical direction and embarking on a career exclusively on the Irish harp.
She joined the Chieftains in 2002 and has toured with them and other artists worldwide for 18 years.