Page "Arnulf of Carinthia" Paragraph 2

Arnulf was granted the Duchy of Carinthia, a Frankish vassal state and successor of the ancient Principality of Carantania, by his father Carloman, after Carloman had become reconciled with his own father Louis the German and was created King of Bavaria.

Arnulf spent his childhood on the Mosaburch or Mosapurc, which is widely believed to be Moosburg in Carinthia, only a few miles away from one of the Imperial residences, the Carolingian Kaiserpfalz at Karnburg, which before as Krnski grad had been the residence of the Carantanian princes.

Arnulf kept his seat here and from later events it may be inferred that the Carantanians, from an early time, treated him as their own Duke.

Later, after he had been crowned King of East Francia, Arnulf turned his old territory of Carinthia into the March of Carinthia, a part of the Duchy of Bavaria.