The present article investigates the beginnings of the Jitianu monastery, proposing some corrections to the more recent interpretations with regard to the role played by the Archimandrite Isaia of the Athonite monastery of Saint Paul. Both Romanian and Russian scholars had discussed Isaia’s pilgrimages, in-between Mount Athos, Bucharest, Moscow and Vienna. The reassessment of the beginnings and of the early history of the Jitianu monastery is largely based on a new corpus of documents found in the archive of Saint Paul monastery. These documents are edited in the appendix of this article. The Wallachian monastery of Jitianu was dependant of the Athonite monastery of Saint Paul, as the Moldavian monastery of Todireni was. The Athonite archive of Saint Paul also comprises some documents that significantly improve our historical knowledge of the Todireni monastery. This study is a preliminary work of a new edition of the Wallachian and Moldavian documents preserved in the archive of Saint Paul. This forthcoming volume will be a completely different one from the Greek edition published in 2002.