Gaelic services have been held in Greyfriars since 1979, when the congregation united with Highland, Tolbooth, St John's. Gaelic worship in Edinburgh began in 1704, when the General Assembly made provision for Gaelic-speaking soldiers stationed in Edinburgh Castle. The first Gaelic chapel opened on Castle Wynd in 1769; the congregation united with its own chapel of ease in Horse Wynd (now Chambers Street) in 1815 and became a parish "quoad sacra" in 1834. In 1875, the congregation, by then known as St Oran's, moved to the former Catholic Apostolic Church in Broughton. The congregation moved again in 1948, when it united with St Columba's – which had been founded as a congregation of the Free Church in 1843 – based on Cambridge Street in Tollcross. In 1956, the congregation united with Tolbooth St John's.