Essays illuminate a wide range of topics from the Middle Ages, from the seals of an empress to priests' wives and the undead. This volume of the Haskins Society Journal demonstrates the Society's continued engagement with historical and interdisciplinary research from the early to the central Middle Ages on a broad range of topics including militarism, piety, the miraculous and the monstrous. Chapters explore material culture through a mythic eleventh-century papal banner and the seals and coins of the Empress Matilda; offer new insights into Carolingian hagiography and into the undead in the Historia rerum Anglicarum. Further chapters feature new evidence on the role of priests' wives, the tensions of multiple lordships, shifting identities in the Irish Sea world, and the didactic use of royal anger. A fresh examination of Aelred of Rievaulx's Relatio de Standaro and a re-assessment of Flemish documentary practice continue the Haskins Society's commitment to primary source analysis. Two essays on the thirteenth century, including links between Crusade spirituality and lay penitential strategies and an investigation into the economic costs of waging war, round out the volume. Contributors: DAN ARMSTRONG, DAVID S. BACHRACH, DANIEL M. BACHRACH, JILLIAN M. BJERKE, HANNAH BOSTON, MARIAH COOPER, FIONA J. GRIFFITHS, JESSE M. HARRINGTON, JEAN-FRANCOIS NIEUS, ALICE RIO, CHARITY URBANSKI, PATRICK WADDEN, MEGHAN WOOLLEY, LU ZUO