Rezumat
The development of the Roman Law in the twelfth and thirteenth century’s in the Law universities in the european space, generated the asimilasion of some Roman Law terminology, having in some cases the same conotation or a changed one, and the introduction of those words in the medieval documents. The term extraneus had been used in the Roman Law from the VI-th century, for defining the heir which was outside the autority of the parents. The term was used for the first time in medieval Hungary in the laws of king Andrew III, and the definition is exactly like that from the sixth century for the heirs which had the extraneus status. The laws of succession from the early Hungarian kings in the eleventh and thirteenth century’s was still used, but with the introduction of the new term, extraneus. The use of this new term, extraneus, in the documents which emanated of the juridic autority’s from Transsylvania, for the juridic disputes in this administrativ space, demonstrate an connection of Transsylvania with the latest educational developments in the juridic domain from the European universites, and the intoduction of these developments in real juridic cases from the first half of the fourteenth century.