Ramona Negrón is a postdoctoral researcher at the KITLV/Royal Dutch Institute for Caribbean and Southeast Asia Studies, researching slavery and proto-citizenship in the Dutch Caribbean. She specializes in colonial, maritime, and slavery history.Jessica den Oudsten is a PhD candidate at Radboud University and a guest researcher at the Huygens Institute. Her research focuses on the social mobility of immigrants and their descendants in Amsterdam (1660–1811). She specializes in early modern maritime history and migration history.