Carloman of Bavaria was the eldest grandson of what descendant of Charlemagne?
Carloman of Bavaria Carloman (German: "Karlmann" , Latin: "Karlomannus" ; c. 830 – 22 March 880), was a Frankish king of the Carolingian dynasty. He was the eldest son of Louis the German, king of East Francia, and Hemma, daughter of a Bavarian count. His father appointed him margrave of Pannonia in 856, and upon his father's death in 876 he became King of Bavaria. He was appointed by King Louis II of Italy as his successor, but the Kingdom of Italy was taken by his uncle Charles the Bald in 875. Carloman only conquered it in 877. In 879 he was incapacitated, perhaps by a stroke, and abdicated Bavaria to Louis the Younger and Italy to Charles the Fat.
Charles Gonzaga, Duke of Mantua and Montferrat Charles Gonzaga (Italian: Carlo I Gonzaga ) (6 May 1580 – 22 September 1637) was Duke of Mantua and Duke of Montferrat from 1627 until his death. He was also Charles III Duke of Nevers and Rethel, as well as Prince of Arche and Charleville