Saint Mungo a coracle in which she drifted across the River Forth to Culross in Fife. There Mungo was born. Mungo was brought up by Saint Serf who was ministering to the Picts in that area. It was Serf who gave him his popular pet-name. At the age of twenty-five, Mungo began his missionary labours on the Clyde, on the site of modern Glasgow. He built his church across the water from an extinct volcano, next to the Molendinar Burn, where the present medieval cathedral now stands. For some thirteen years, he laboured in the district, living a most austere life in
St Laserian's Cathedral, Old Leighlin under the tower in 1800 and later moved to an alcove. A fine timber ceiling in the Chancel was installed in 1890. St Laserian's Cathedral, Old Leighlin St Laserian's Cathedral, Old Leighlin, previously the cathedral of the Diocese of Leighlin, is now one of the six cathedral churches in the Diocese of Cashel and Ossory of the Church of Ireland. It is situated on the site of a mediaeval monastery in the village of Old Leighlin, County Carlow, Ireland, some 12 km south of Carlow town in the ecclesiastical province of Dublin. The Cathedral Church of St Laserian is one