De Thessalonica urbe a Normannis capta

…recounted these events in his De Thessalonica urbe a Normannis capta (“On the Conquest of Thessalonica by the Normans”). Opposing the formalism petrifying the Eastern Church, he criticized clerical complacency in his treatise “On Hypocrisy” and urged the moral and cultural reawakening of monasticism in his famous tract Inquiry into…