A STUDY ON THE TITLE OF ROMAN EMPEROR AND THE POLITICAL ORDER OF MEDIEVAL CHRISTIAN WORLD

本研究旨在探讨中世纪欧洲世界的政治领域，重点关注10 - 11世纪拜占庭帝国与西罗马帝国之间争夺罗马皇帝头衔的斗争。众所周知，经过几十年的废黜，奥托一世于962年2月2日在罗马加冕为皇帝。它首先被拜占庭当局忽视，因为他们认为他们在君士坦丁堡的皇帝是地球上唯一的君主。在960年代，西方国王奥托，现在也是皇帝，试图统治意大利，并与拜占庭法院谈判。本研究调查了有关法院间谈判的事实，相关来源不仅包括西方，而且包括希腊拜占庭的。这项研究最重要的成果是克雷莫纳主教Liudprand的“Relatio de Legatio Constantinopolitana”的日文译本。这个使命是在968年春天派遣的，这是两个权威之间争夺意大利领土的关键时期。本研究包括了这份大使报告的全译本和详细的注释，还包括了对拜占庭帝国和拜占庭帝国的帝国文献的分析。

The aim of this research was to investigate the political sphere of Medieval European World, focusing on the competitive intercourses for the title of Roman Emperor between the Byzantine Empire and western Ottonian court during the 10th-11th centuries. As well known, after some decades of desition of Carolingian Emperor, Otto I was crowned Emperor on 2 February 962 at Rome. It had firstly been ignored by Byzantine authorities, because they regarded their Emperor in Constantinople the only sovereign on the earth. During 960s, Western King Otto, now also Emperor, sought to rule in Italy and negotiated with Byzantine court. This study surveyed the facts concerning inter-Court negotiations on relevant sources which include not only the western but also Byzantine ones in Greek. The most important fruit of this study is a Japanese translation of "Relatio de Legatio Constantinopolitana" of Liudprand, Bishop of Cremona. The mission was dispatched in spring of 968, a crucial period between two autholities for the struggle over the realm of Italy. Including the full translation of this ambassador report with detailed notes, this reseach also covers analysis of imperial documents both of Byzantine and Ottonian.