Charles the Younger(c. 772 – December 4, 811) was the King of the Franks, Duke of Ingelheim, King of Neustria and Franconia(790 - 811).
Charles was the second son of Charlemagne, the younger brother of Pepin the Hunchback and the elder brother of Carloman (Pepin), (King of Italy) and of Louis the Pious. His mother was Charlemagne's second wife, Hildegard of Swabia.