Louis the Child
Luitpold, founder of the Luitpolding dynasty, was not a duke of Bavaria but a margrave of Carinthia under the rule of Louis the Child. Frankish power had waned in the region due to Hungarian attacks, allowing the local rulers greater independence. Luitpold's son, Arnulf, claimed the title of duke (implying full autonomy) in 911 and was recognized as such by King Henry the Fowler of Germany in 920.