guesswork based on various narratives. Following the English Reformation, the church and its assets came into the control of the Established church. The majority Roman Catholic population was obliged to conduct its services elsewhere, often in private accommodations. There was a regular "pattern" held at the church until at least the 18th century. Since 1974, the church of the Holy Trinity in Donaghmede has served the Roman Catholic parishioners of that area, including later-built Clongriffin, and Balgriffin. St Doulagh Very little is known of St Doulagh () who gave his name to the church. It is calculated that he lived in the early 7th century and was a hermit/anchorite. He is said to have lived isolated, in a cell attached to the church, and to have had only minimal contact with the outside world. Anchoritism was a feature of the Celtic church and one of many interesting points of similarity between Ireland's early Christianity and the Eastern churches. There is no extant history of St Doulough, and his dates are a matter for conjecture. Reeves (1859) stated that St Duilech is mentioned in Sacred Genealogies as the son of Malach, son of Sinell, and eighth in descent from Fergus Mac Rossa who is supposed to have lived in Christian Ireland. Reeves also mentions a St Mobhi (as told in the Leabhar Laighin, Book of Leinster) as an uncle of St Duilech. St Mobhi's death was mentioned by Tighernach as 630, and thus Reeves assigns the year 600 as approximately the time St Duilech lived. The Martyrology of Donegal says he was of the race of Conmac, son of Fergus, son of Ros, son of Rudhraidhe, and Clochar is given as the name of his church. The Gaelic for Grangegorman is Cill Duiligh, which suggests he had a connection with that place. There are other early documents that refer to St Duilech of Clochar (Rachel Moss, 2003) and the site is referred to as Clochar in many documents up to the late 1500s. The earliest historical reference to the church dates from the ninth century, in The Martyrology of Oengus; in that text the church is called Duilech Cain Clochair. The early documentation of St Doulough is sketchy, but legend has it that he was an anchorite. In the Calendar of Christ Church he is described as ‘Episcopus and Confessor’, suggesting a ministry. A later anchorite, resident in St Douloughs, Eustace