The subject of the presentation is a reflection on the role of royal power in the works of monastic authors from the period of the monastic reform in the 10th century. The main focus of the research will be the analysis of the writings of Saint Abbo of Fleury (c. 940-1004) and his reflections on the role of rulers in Christian society, as well as the relationships between the monastery, royal power, and episcopal authority. Key research issues include considering the nature of royal power within the context of the Fleury Abbey, reflections regarding the influence of kings on the renewal of monastic life, and the relationships that should exist between monasteries and secular rulers. As part of the adopted comparative perspective, the study will also include writings from other monastic circles, such as the Abbey of Cluny, and works by authors associated with the Lotharingian reform.