Founded in 1479 for the Franciscan Friars, Greyfriars was sold to the Sisters of Mercy in 1891. The ruined buildings of the Convent and Chapel were restored between 1896 and 1908 by the Marquis of Bute and his son Lord Colum Crichton-Stuart.

Still used as a convent chapel today, now by the Dominican Sisters of St. Cecilia, the interior of the chapel is largely unchanged from when it was re-built. There is a lovely wooden barrel-vaulted roof structure, very finely carved wooden screen dividing the nave from the choir and a beautiful stained glass window above the altar.