of the land questioned the new Prince about his integrity and reminded him of his duties. Later, when the Duchy of Carinthia had fallen to the Habsburgs, the idea that it was actually the people from whom the Duke of Carinthia received his legitimation was the basis of the Habsburgs' claim to the unique title of Archduke. The coronation of Carinthian Dukes consisted of three parts: first, a ritual in Slovene was performed at the Prince's Stone; then a mass was held at the cathedral of Maria Saal (); and subsequently, a ceremony took place at the Duke's Chair (, German: ), where the new Duke swore an oath in German and where he also received the homage of the estates. The Duke's Chair is located at Zollfeld valley, north of Klagenfurt in modern Carinthia, Austria. The ceremony was first described by the chronicler John of Viktring on the occasion of the coronation of Meinhard II of Tyrol in 1286. It is also mentioned in Jean Bodin's book Six livres de la République in 1576. Mentions in late medieval literature Chronicle of Fredegar mentions Carantania as Sclauvinia, Dante Alighieri (1265–1321) mentions Carantania as Chiarentana. The same name was also used by Florentines, such as the poet Fazio degli Uberti (circa 1309–1367), the famous chronicler Giovanni Villani (c. 1275–1348), and Giovanni Boccaccio (1313–1375), who wrote that the Brenta River rises from the mountains of Carantania, a land in the Alps dividing Italy from Germany. Ethnic and social structure The population of ancient Carantania had a polyethnic structure. The core stratum was represented by two groups of Slavs who had settled in the Eastern Alps region in 6th century and are the ancestors of the present-day Slovenes and partially also Austrians. Other ethnic strong element included the descendants of the Romanised aboriginal peoples (Noricans), which is attestable on the basis of a recent DNA analysis and a number of place names. It is also possible that traces of Dulebes, Avars, Bulgars, Croats and the Germanic peoples were present among Carantanians. Language In its early stages, the language of Carantanian Slavs was essentially Proto-Slavic. In Slovenian linguistic literature and reference books it is sometimes provisionally termed Alpine Slavic (alpska slovanščina). Its Proto-Slavic character can be deduced from language contacts of Alpine Slavs with the remainders of the Romanised aboriginal population, later also with Bavarians. The adopted Pre-Slavic placenames and rivernames and their subsequent