In the politically dense and fractured landscape of the Holy Roman Empire, safe conduct provided a key framework for negotiating freedom of movement and its restriction. The introduction sets out how the book uses safe conduct to approach the Holy Roman Empire in a spatial rather than diachronic perspective. It describes how authorities in the Empire restricted, promoted, and channelled different forms of mobility for political, fiscal, and symbolic reasons. Spatially these efforts were rarely concentrated at borders, which challenges anachronistic assumptions about the functioning of early modern borders. Conflicts around the enclosure of movement led to controversial debates around the rulers’ right to interfere with human mobility, adding a new chapter to the history of free movement. Drawing on manuscript, visual, and printed sources as well as self-designed maps, this book offers a new perspective on the unstable relation of political authority and human mobility in the heartlands of old-regime Europe.