This thesis focuses on the late medieval mss of Gadla 'Ewtatewos. The reason why the researcher selected the topic at hand is that the ms is not well known among the general public and has not been studied deeply by scholars, although it constitutes a rich source of historical, religious and cultural events of the epoch. The study uses a comparative methodology, whereby the three mss, that is ms TG (the ms in Tara Gadam), ms NA (the ms in National Archives) and EMML 529 (the ms in rES) , are compared for their similarities and differences. Chapter one consists of the background of the study, review of related literature, statement of the problem, as well as the objective, methodology, scope and s ignificance of the study. In Chapter two, the researcher makes an a nalysis, including a list of the three mss of Gadla 'Ewostatewos, a description of the mss of TG, and notes about the hagiographer and about the date of composition of ms TG. Chapter three deals with content analysis of the Gadl comprising an account of historical, political, religious, ideological and cultural events of the epoch and The historical part gives a wide description of the biography of 'Ewos(atewos and notes about his parents and grandparents. This chapter a lso includes his teachings concernmg the religious aspect, an account is given of 'Ewostatewos' teachings on the sabbaths, the Trinity, the incarnation and moral issues with regard to socia l issu es, 'Ewostatewos expressed opposition to the slave trade and polygamy. The new findings on the Gadl is a lso expressed in this ch apter, such as: the meaning of the name 'Ewostatewos, the hi ~to rical relations between Sudan and Ethiopia, the ideological differences between the house of 'Anorewos and the house of 'Ewostatewos. Chapter Four shows historical, religious and hagiographical problems of Gadl 'Ewostatewos In chapter Five, the researcher engages in a philological analysis based on the two mss (TG and NA). This is concerned especially with conjunctive and polygenetic errors and linguistic problems such as syntax, phonology, morphology, gender, number, etc. Finally chapter six conclu des in conclusion and recommendations.