Dedicated to the Dormition of the Theotokos, until the 18th century it is recorded also as dedicated to the Transfiguration of the Saviour. The surname Olympiotissa derives from a famed icon of the Panagia, which is believed to have come from a no longer extant monastery at Karya, on the foot of Mount Olympus. Once a year, on 5 October, the icon is borne in a litany from the monastery to the Church of Saint Demetrios.