"In her book, Maddalena Betti attempts to chart the fate of the Methodian mission in Great Moravia and the establishment of Sancta ecclesia Marabensis in Moravian territory in the second half of the ninth century. While this topic has been treated previously, she has chosen to look at the formation of ecclesiastical hierarchies in Great Moravia from the perspective of papal policies. For this reason, Betti has studied in detail papal correspondence pertinent to matters of the Moravian mission, especially the letters of John VIII, whose correspondence is particularly concerned with the Moravian mission. Her study is an extremely valuable addition to previous research into Great Moravian Christian culture, as it provides a well-rounded and erudite picture of the papal position on the Methodian mission in Great Moravia. Besides, Betti’s study also contributes to other scholarly inquiries connected with the Moravian state, such as its geographical location..."Evina Steinova, Network and Neighbours, Volume 2, Number 1 (2014)