 Duke Henry's son Henry II "the Quarreller" from 974 onwards, revolted against his cousin Emperor Otto II, whereupon he was deposed as Duke of Bavaria in favour of Otto's nephew Duke Otto I of Swabia.At the same time Emperor Otto II created a sixth duchy in addition to the original stem duchies, the new Duchy of Carinthia.He reverted the possession of the territories to the Luitpoldings, when he split Carinthia from the Bavarian lands and installed the former Duke Berthold's son Henry the Younger as duke in 976.