This book synthesizes three fields of inquiry on the cutting edge of scholarship in medieval studies and world history: the history of medieval Sicily; the history of maritime violence, often named as piracy; and digital humanities. By merging these seemingly disparate strands in the scholarship of world history and medieval studies into a single volume, this book offers new insights into the history of medieval Sicily and the study of maritime violence. As several of the essays in this volume demonstrate, maritime violence fundamentally shaped experience in the medieval Mediterranean, as every ship that sailed, even those launched for commerce or travel, anticipated the possibility of encountering pirates, or dabbling in piracy themselves.