Moisés Prieto completed his PhD at the University of Zurich in 2013. His doctoral research focused on Swiss media perception of the late Franco regime and the Spanish democratisation process (published in 2015 by Böhlau). His research interests include media history, microhistory, the history of emotions, the history of migration and authoritarian systems and historical semantics. He is co-author of Tele-revista y la Transición (Iberoamericana/Vervuert, 2015). From 2014 to 2015 he was a visiting fellow at St Antony’s College (University of Oxford), funded by the Swiss National Science Foundation. He has been an Alexander von Humboldt Research Fellow at Humboldt University since 2016, and is currently working on dictatorial narratives during the first half of the long nineteenth century. This paper, ‘Shaping the Tyrant: The Role of Emotions in Nineteenth-Century Accounts on the Argentine Dictator Juan Manuel de Rosas (1830s–1850s)’, was delivered at ‘Emotions of Cultures/Cultures of Emotions: Comparative Perspectives’, the inaugural conference of the Society for the History of Emotions in December 2017.