EN
This article is devoted to the reinterpretation of proper names refering to one of the earliest historical sources concerning Polish history, known as “Dagome iudex” (ca 991–992 BC). The author focuses on the question of how to interpret some uncertain Latinized versions of Slavic names included in this document. For example, some historians interpret Dagome as a bastardized version of the words Ego Mesco dux meaning “I, prince Mieszko”. According to the opinion of the majority of scholars, Alemure might be the city of Olomouc, in Moravia. A paleographical and micro-philological analysis leads the author to the conclusion that these Medieval Latin forms should be transcribed as follows: Dagome – Tągoma, Misica – Mieszek, Schinesgne – Gniezno and Alemure – Lemiesza. In the author’s opinion, the document provides a description of Polish western borders including the Lower Silesia and ending at the Lusatian Neisse and the Oder, at the end of tenth century. A new interpretation of the document is discussed, suggesting that the main purpose of Mieszko was problably to prevent German territorial claims on the borderlands.