"Donation of Constantine" and "Constitutum Constantini" The Misinterpretation of a Fiction and its Original Meaning. With a contribution by Wolfram Brandes: "The Satraps of Constantine"

"Das jüngste Buch des Frankfurter Mediävisten Fried fasziniert durch den energischen Zugriff, in dem ein neuer methodischer Ansatz für die Forschung fruchtbar gemacht und manches eingefahrene Urteil revidiert wird."
Volker Leppin in: Das Mittelalter 2/2009

"This book could be characterised as a collection of lectures with a stimulating discussion of individual and collective memory on the Donation of Constantine and the origin of the Constitutum. [...] Fried has not settled the argument but he makes an important contribution to a debate which will long continue."
Przemyslaw Nowak in: The Journal of Ecclesiastical History 2/2008

"The Donation of Constantine is a clear cut example of how historical fiction can enter public memory and, fed by various powers, stay there for centuries. [...] Fried has provided a book of great value not only to specialists in the matter, but also to less specialized readers, definitely a milestone in this specific field of research."
Jan Nelis in: BMCR 2008.02.21