supervisors when I began my doctoral studies in ancient history at the Eötvös Loránd University. Since then, he has continuously supported and guided me in my research. I am also grateful to Prof. György Németh, the Head of the doctoral program and the department of Ancient Studies, who became my inner supervisor. He has also been very supportive and always encouraged me to apply for different scholarships.Indeed, the compilation of this thesis would not have been possible without the help of grants and scholarships. The support of the grant entitled TÁMOP-4.2.1.B-09/1/KMR "Kultúrák közötti párbeszéd," made it possible for me to spend one month in the Papyrussammlung (Österreichische Nationalbibliothek) in Vienna in January 2012. I will never be able to thank enough Prof. Bernhard Palme, the director of the Papyrussamlung, for his permission to research and work in the papyrus collection, which has certainly one of the best libraries in the world in terms of papyrology. Since then, I have been enjoying his constant support whenever I need to go to the Papyrussammlung.I was also very lucky to have been selected to participate in the Summer Papyrological Institute that was held at the University of Chicago in July 2012. I owe many thanks to Prof.