In 800 CE, this predecessor of Louis the Pious was crowned by Pope Leo III as "King of the Romans."
This ruler's third wife, Fastrada, had fought against him with Widukind's Saxons. He ushered in a "Renaissance" that included such scholars as Alcuin of York and this man's biographer, Einhard. Three of his grandsons carved up his empire in the Treaty of Verdun. This ruler defeated the Lombards at Pavia, though his rear guard lost to Basques at Ronceveaux Pass. In 800 CE, this predecessor of Louis the Pious was crowned by Pope Leo III as "King of the Romans." For 10 points, name this son of Pepin the Short, a great Frankish king of the Carolingian dynasty.
This ruler's third wife, Fastrada, had fought against him with Widukind's Saxons.
Charlemagne [or Charles I; or Charles the Great; or Karl der Grosse from any Germans]