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Marysia Jonsson


Marysia Jonsson is a historian of early modern Eastern and North-Eastern Europe, with a particular emphasis on the Baltic. She completed her dissertation at NYU in 2017 and the project examines the evolution of conceptions of tolerance in the region, focusing particularly on the Great Northern War (1700-1721). Using diplomatic correspondence, travel diaries, and cartographic sources, her work argues against viewing the post-Westphalian period as one of confessional stability, but rather emphasizes the persistence of religious conflict. Her other projects currently include work on eighteenth-century religious impostors and networks of charlatans, especially their role in delineating both the continental and cultural boundaries of Europe, as well as research on frozen infrastructures and the cultural role of Baltic ice during the Little Ice Age. She is currently a postdoctoral fellow in the History department and the Society for the Humanities at Cornell, where she teaches classes on the Apocalypse and early modern beliefs in magic. 


  • History
  • Society for the Humanities


Religious Tolerance, Baltic Confessional Geographies, and Protestant Networks in the Age of the Great Northern War (1700-1721)