Date of Award


Degree Name

Master of Arts



First Advisor

Dr. Robert F. Berkhofer III

Second Advisor

Dr. E. Rozanne Elder

Third Advisor

Dr. Luigi Andrea Berto


Normandy, EU, Treport, monastery, borders

Access Setting

Masters Thesis-Open Access


This thesis examines the Benedictine monastery of Saint-Michel du Tréport, situated in the county of Eu in Normandy’s northeast corner, from its foundation in 1059 until the death of Louis IX of France in 1270. Utilizing as its main source base the charters in the Cartulaire de L’abbaye de Saint-Michel du Tréport of P. Laffleur de Kermaingant, this project seeks to situate the monks of Saint-Michel du Tréport within their ecclesiastical context, to understand the monastery’s lay patronage, and to examine the secular and ecclesiastical borders of northeast Normandy and the lands surrounding them, particularly the relationship of the Norman county of Eu with its non-Norman neighbor, the county of Ponthieu. Additionally, this thesis seeks to determine the impact of the 1204 Capetian conquest of Normandy upon this region as reflected in Saint-Michel du Tréport’s documents. This thesis finds that the monastery of Saint-Michel du Tréport was closely connected to the county of Eu and to the family of its counts, that it had few possessions in the county of Ponthieu, and that the monks forged ecclesiastical links outside the diocese of Rouen. This project also argues that the Eudoise-Ponthevin border was not militarized and did not represent a major legal and cultural frontier, and that the 1204 Capetian conquest is nearly invisible in Saint-Michel du Tréport’s sources.