Rethinking early modern extraterritoriality from a social, entangled, and trans-imperial perspective, to see if it could reveal more practices than that of ambassadorial immunity, led us to a wider variety of practices of jurisdictional expansion. The angle chosen emphasised social property relations as a basis to understanding key structural changes in conceptions and practices of jurisdiction, territory, and sovereignty. This approach to historical sociology is shaped by a Political Marxist methodology focusing on the structural (political and legal) specificities of early modern social property relations, and a radically historicist, processual, and non-consequentialist conception of historical development.