The Team
The historical map of Florence
wasn’t built in a day.
DECIMA is the collaborative product of a dedicated team of researchers from the Department of History at the University of Toronto and the Department of History at Brock University. With the help and continued support of a network of international collaborators, DECIMA has continued to grow. Ongoing technical development is made possible thanks to the support of the Information and Instructional Technology Services (IITS) at the University of Toronto.
Below are listed the DECIMA contributors and supporters, and you can also certainly contact us.
Faculty and Researchers

Nicholas Terpstra
Principal Investigator
I teach renaissance and early modern History at the University of Toronto. My research lies at the intersections of politics, gender, religion, and charity, and has explored how Renaissance cities handled orphans, abandoned children, criminals, and the poor in the fifteenth and sixteenth centuries. One recent book, Cultures of Charity: Women, Politics, and the Reform of Poor Relief in Renaissance Italy (Harvard University Press, 2013) won prizes from the Renaissance Society of America and the American Historical Association. The most recent monograph, Religious Refugees in the Early Modern World: An Alternative History of the Reformation (Cambridge University Press, 2015) asks how we might re-interpret the Reformation if we recognize it as the time in European history when the religious refugee emerges as a mass phenomenon. My current research into sensory conceptions of space in Renaissance Florence was the impetus for creating DECIMA as a digital tool mapping social, sensory, and built environments.

Colin Rose
Co-Principal Investigator
I am an historian of early modern Italy, and my research interests focus on how communities constituted and managed themselves in unstable worlds of poverty, precarious work and potential violence. I teach at Brock University in St. Catharines, Ontario, where I am Associate Professor of European and Digital History. As the Lead RA and now Co-Principal Investigator for DECIMA, I have been responsible for overseeing project design and execution, and for GIS cartography. HGIS allows me to better understand the role of physical space, and movement through it, in shaping the daily lives of early modern city dwellers. Whether looking at the residential patterns of particular professions or the prosecution of violent crime, location mattered in early modern Europe, and I am always interested in flexible and dynamic ways to explore the relationships between space, social action and spatial representations of behaviour. I have previously published on the roles HGIS can play in the study of early modern Florentine history, on vendetta and its prosecution in Bologna, and on petitioning in Parma.

Jennifer DeSilva
Research Collaborator (PhD Toronto 2007)
I am a newly-appointed Associate Professor, Teaching Stream, in Renaissance Studies and Digital Humanities. I taught at Ball State University from 2010, where I published on early modern Rome and Bologna, as well as on Florentine sex workers and teaching with the DECIMA Project. My other research includes work on the Offices of Ceremonies at the papal court, the College of Cardinals, and papal kin. I am also one of the editors of the Sixteenth Century Journal.

Daniel Jamison
Post-Doctoral Researcher, 2018-present
I hold a doctorate from the Centre for Medieval Studies at the University of Toronto, where I specialized in the political and economic history of late medieval Lucca. My dissertation used the records of the gabella maggiore, the Lucchese customs tax, to contextualize the decision-making process of the city’s fiscal legislators at the end of the fourteenth century. Although my material differs vastly from sixteenth- and seventeenth-century censuses, I have tried to bring my zest for administrative documents to the Florentine ricerche at the core of the DECIMA project. Beginning in 2011, I helped transcribe and encode the 1561/2 data, and I am currently leading a team of RAs working on censuses from 1551 and 1632. My chapter in Mapping Space, Sense, and Movement in Florence focused on the role played by institutional landlords in the urban property market.
Research Assistants

Charlotte Clarke
Research Assistant
I am beginning my doctoral studies at the University of Toronto’s History department. My research interests center around broader histories of gender and sexuality, bodily history, sensory history, and the history of medicine and health. In my PhD, I plan to examine histories of reproductive and sexual health, with a particular interest in gynaecological practices in premodern Tuscany.

Ariana Ellis
Communications Manager, Research Assistant
I am a doctoral candidate in the University of Toronto’s Department of History. My work utilizes sensory, social, and emotional history, focusing on the relationship between popular culture and the civic rituals of public execution in 15th and 16th century Venice and London. I completed a BA in Medieval Studies at the University of Toronto, and a Masters in Medieval Studies at the University of Toronto’s Centre for Medieval studies. On the DECIMA team I work as a researcher and filmmaker, transcribing entries from 17th century census documents and creating videos to increase public engagement.

Jason Papagiannis
Research Assistant
I am a MA student at the University of Toronto studying the Greek diaspora across the Mediterranean during the Early Modern period. I graduated from McGill University where I majored in History and Religious Studies and came to Toronto to delve deeper into my research interests. I am currently sorting through available census data from Livorno, helping to map and categorize the Greek population of the city. I look forward to working with the DECIMA project.

Heather Smith
Research Assistant

Steven Teasdale
Research Assistant
I completed my PhD in the Department of History at the University of Toronto in 2022. My research centered on early modern Genoese merchant networks in the Mediterranean and Atlantic worlds of the fifteenth and early sixteenth centuries, in particular examining the intersections of slavery, banking, commerce and humanism. As part of the DECIMA team I have worked on transcribing entries from various census documents and developing a robust data model for the project. I was also involved in the development of a database of Genoese merchants from 1348 to 1528 as well as a portal for the digitized versions of the Rerum Italicarum Scriptores with the ITER gateway team.

Elizabeth Colantoni
Research Assistant

Sofia Barbieri
Research Assistant
I am a fourth-year undergraduate student at the University of Toronto, where I am pursuing an honors degree in History. My research interests lie in the socio-cultural history of early modern Italy, with a focus on the intersections of violence, gender, and interpersonal relations in seventeenth century Tuscany. I am currently writing my senior thesis, which examines how Florentine patrician women preserved their social networks in times of crisis. I am honored to join the DECIMA team by transcribing the Florentine Registri Battesimali from the fifteenth to seventeenth centuries.
Emeritus DECIMA Researchers

Eric Pecile
Research Assistant

Jasmine Proteau
Research Affiliate

Julia Rombough
Research Affiliate

Ariana Sider
Research Assistant

Hana Suckstorff
Research Assistant

Spirit Waite
Research Assistant

Justine Walden
Post-Doctoral Researcher, 2016-2018

Ben Woodward
Co-op Student
Acknowledgements
The Archivio di Stato di Firenze
The Archivio di Stato di Livorno
The University of Florence
The University of Livorno
- Lucia Frattarelli-Fischer
Computing in the Humanities & Social Sciences (CHASS),
Faculty of Arts & Science, University of Toronto
- Philip Wright
- Andreea Georghe
Map and Data Library, University of Toronto Libraries, University of Toronto
Geography and Planning, Faculty of Arts & Science, University of Toronto
Kunsthistorisches Institut in Florenz / Max-Planck-Institut, Florence
I Tatti, Harvard University Center for Italian Renaissance Studies, Florence
Monografik, Toronto
- Andrew Robinson
Faculty of Information (iSchool), University of Toronto
- Colin Furness
- Caeleigh Moffat
- Liz Murray
- Hana Nagel
- Abayomi Osamiluyi
ESRI Toronto
- Michael Luubert
- Krista Amolins
- David Kossowsky
This project is supported by the Social Sciences and Humanities Research Council of Canada
Archivio di Stato di Firenze
Archivio di Stato di Livorno
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