This thesis reassesses the nature and importance of the Scottish Episcopal Church in Edinburgh and more widely. Based on a microstudy of one chapel community over a twenty-four year period, it addresses a series of questions of religion, identity, gender, culture and civic society in late Enlightenment Edinburgh, Scotland, and Britain, combining ecclesiastical, social and economic history. The study examines the congregation of Charlotte Episcopal Chapel, Rose Street, Edinburgh, from its foundation by English clergyman Daniel Sandford in 1794 to its move to the new Gothic chapel of St John's in 1818. Initially an independent chapel, Daniel Sandford's congregation joined the Scottish Episcopal Church in 1805 and the following year he was made Bishop of Edinburgh, although he contined to combine this role with that of rector to the chapel until his death in 1830. Methodologically, the thesis combines a detailed reassessment of Daniel Sandford's thought and ministry (Chapter Two) with a prosopographical study of 431 individuals connected with the congregation as officials or in the in the chapel registers (Chapter Three). Biography of the leader and prosopography of the community are brought to illuminate and enrich one another to understand the wealth and business networks of the congregation (Chapter Four) and their attitudes to politics, piety and gender (Chapter Five). The thesis argues that Daniel Sandford's Evangelical Episcopalianism was both original in Scotland, and one of the most successful in appealing to educated and influential members of Edinburgh society. The congregation, drawn largely from the newly-built West End of Edinburgh, were bourgeois and British in their composition. The core membership of privileged Scots, rooted in land and law, led, but were also challenged by and forced to adapt to a broad social spread who brought new wealth and influence into the West End through India and the consumer boom. The discussion opens up many avenues for further research including the connections between Scottish Episcopalianism and romanticism, the importance of India and social mobility within the consumer economy in the development of Edinburgh, and Scottish female intellectual culture and its engagement with religion and enlightenment. Understanding the role of enlightened, evangelical Episcopalianism, which is the contribution of this study, will form an important context for these enquiries.