On the Saturday of Bright Week, a service has been written to commemorate all of the Saintly Holy Fathers of the so-called "Kollyvades" movement. These were monastics primarily from Mount Athos who taught adherence to Holy Orthodox dogma and tradition amid waves of westernization and secularism during the years of the Turkish occupation of Greece. The ranks of such Holy Fathers include some of the Church's most beloved Saints: St. Nikodemos of the Holy Mountain, St. Makarios (Notaras) of Corinth, St. Nektarios of Pentapolis, St. Kosmas Aitolos, St. Savvas of Kalymnos, St. Athanasios of Paros, St. Paisius Velichovsky, St. Nicholas Planas, and so many more. The following quote (from mountathos.gr) discusses the Holy Mountain and the Kollyvades by Monk Moses:
"In the mid 18th century a grave theological debate developed all over the Holy Mountain in connection with the issues of the holding of memorial services for the departed, frequency of Holy Communion, and other matters relating to the exact observance of Orthodox tradition. The starting-point for this prolonged controversy was the building of the kyriakon at the Skete of St Anne (1754). The question arose as to whether the commemoration of the founders and benefactors should be held on Saturday or Sunday, and with what frequency the monks should receive Holy Communion. The debate divided the monks, and those who insisted that the memorial services should be held on Saturdays were mockingly dubbed 'kollyvades'. It seems, however, that, behind their apparent obstinacy, they had a profound knowledge of church tradition and fought hard for its authenticity and for its purification from adulteration. Thus the name of 'kollyvas' became a title of honour and the movement was responsible for a profitable and beneficial regeneration and renewal. Indeed, this devout movement was led by three saints: Makarios Notaras, Nicodemus the Athonite, and Athanasios of Paros, and they numbered among their supporters and sympathisers distinguished scholars such as Neophytos Kafsokalyvitis, Christophoros Artinos, Agapios of Cyprus, Iakovos the Peloponnesian, Pavlos the hermit, Theodoritos of Esphigmenou, and a number of others. Some of them chose voluntary exile and took refuge in mainland Greece or the islands, where they founded scores of monasteries, of which a fair number survive today. Thus we see Makarios Notaras on Chios, Niphon on Skiathos, Dionysios of Skiathos on Skyros, Ierotheos on Hydra, with numerous disciples and friends of that Athonite tradition which has nourished monks and saints. The monasteries which they founded were noted for their vigour and service. The Ecumenical Patriarchate by decisions of the Holy Synod finally put an end to the 'kollyvades' issue, by ruling that memorial services could be held as circumstances demanded and that Holy Communion, with the proper preparation, could be received frequently, and that the life of the substance, and not the aridity of the form, was to be adhered to."
(taken from: http://www.mountathos.gr/active.aspx?mode=en%7B00000000-0000-0000-0000-000000000004%7DView)
For the full service text (in Greek) of the Synaxis of the Holy Kollyvades Fathers: