Geoffrey of Vendôme, abbot. [Letter to Ermengarde of Anjou, countess of Brittany, 1117] in Patrologiae cursus completus. Series Latina (Patrologia Latina) 157: 205-206

[ Letter from Geoffrey of Vendôme, abbot, to Ermengarde of Anjou, countess of Brittany ]
Geoffrey criticizes Ermengard for leaving the cloister and returning to the world and accuses her of being swayed by flatterers.
Online at Epistolae (See also Bibliographia record).