Ester Zoomer finished her Bachelor History (2013) and Master Europe 1100-1800 (2016), at the University of Leiden. Between 2015 and 2018 she was employed as an editorial assistant for BMGN-Low Countries Historical Review (2015-16) and International Review of Social History (2017-18), and as a junior communications manager for the KNHG (KNHG (Royal Netherlands Historical Society, 2016-17).

In 2018 she started as a PhD researcher at the University of Amsterdam, as part of the NWO VIDI project 'Managing multi-level conflicts in commercial cities in Northern Europe (c.1350-1570)'. Her research is focused on Hanseatic diplomatic actors and merchants residing in London, Bruges and Antwerp. Alongside her research, she acted as PhD representative of the Dutch Research School of Medieval Studies (2019-20) and is currently a board member of Jong KNHG, an independent working group of KNHG that organizes debate series, workshops and master classes (2015-present).

Research interests include:

• Medieval and early modern Europe
• History of the Hanse
• Merchant communities abroad
• Premodern urban history
• Social-economic history
• Conflict studies and diplomacy
• Medieval identities and networks