In addition to being a prolific spiritual writer and the abbot of the premier Cistercian monastery in northern England, Aelred of Rievaulx somehow found the time and the stamina to travel extensively throughout the Anglo-Norman realm, acting as a mediator, a problem solver, and an adviser to kings. His career spanned the troubled years of the civil war between King Stephen and the Empress Matilda and reached its zenith during the early years of the reign of Henry II. In this work, Jean Truax focuses on the public career of Aelred of Rievaulx, placing him in his historical context, deepening the reader’s understanding of his work, and casting additional light on his underappreciated role as politician, mediator, and negotiator outside his abbey’s walls.