This thesis aims to reconstruct the history, building phases, original appearance and role in mediaeval Rome of the church of S. Maria in Aracoeli, from its origins to c. 1400. The introduction describes the topographical setting of the church and traces its historiography . The first chapter investigates previous churches, their documentary sources, archaeological evidence and surviving components of church furniture. Patronage, date and original appearance of the so-called ‘ara coeli’, the extant main altar of the former church, are discussed. The second chapter concerns the present church, constructed by the Franciscans after their arrival on the hill in the mid-thirteenth century. The first section covers the building history from a documentary point of view, while the second provides a formal analysis, dedicating a subsection to each surviving part (nave and aisles, transept and adjacent chapel, facade). Archaeological research, together with graphic, epigraphic, literary and documentary sources, establishes the transformations of the building as well as the original plan and elevation of its lost parts (apse and eastern chapels). The third section critically reconsiders the lost decoration of the original apse, its iconography and the reasons for its success. The fourth section focuses on the workshop: analysis of the building technique is combined with the information on the architect gathered from his surviving sepulchral epitaph; the use of spolia and the adoption of gothic window-tracery are also discussed. The final chapter places Aracoeli in its context: the first section examines the civic role of the church as a setting for communal assemblies and a privileged site for judgement, the second considers its role as a favourite site for burial chapels of important Roman families. This thesis clarifies the history and appearance of the Christian site before the Franciscans, and provides a reconstruction of the building stages and original aspect of the present church (as well as of the function of some annexed structures) which differs radically from previous hypotheses, thus situating Aracoeli in a different architectural and cultural framework.

This thesis explores how Venice's church architecture was shaped by the Counter Reformation between 1550-1700. It provides a snapshot of the situation with four pertinent case studies representing the broad spectrum of Venice's churches. Chapter One focuses on San Nicolo di Ldo, a church that was part of the proactive Cassinese Congregation. The church was rebuilt entirely and represents an almost ideal response to the Counter Reformation. Chapter Two looks at the rebuilt parish church of San Moise and it tackles the compromises that inevitably came with many competing factors. Chapters Three and Four look at how older churches were renewed and retrofitted with new features, adapting their existing structures to cater for new requirements as stipulated by the Council of Trent decrees or pamphlets such as Carlo Borromeo's Instructiones. Chapter Three hones in on Santo Stefano, a large monastic Gothic church, while Chapter Four looks at the considerably smaller Byzantine parish church of San Nicolo dei Mendicoli. This thesis highlights many similarities between the four buildings (and others in Venice), which exemplify key facets of the reform movement and the pluralistic and complex challenges faced by each church.