 It is not entirely clear which St. Flannan the chapel honours.It is likely that he was either the 7th century Abbot of Killaloe in County Clare or alternatively the half brother of the 8th century St Ronan who gave his name to the nearby island of North Rona.There was also a certain Flann, son of an Abbot of Iona called Maol-duine who died in 890, and who may have loaned his name to these isolated isles.