Answer: The period after Charlemagne's death is known as the Carolingian Renaissance.
Explanation: This was a period of cultural, intellectual, and artistic revival in the Carolingian Empire, which encompassed much of Western Europe. During this time, there was a renewed interest in classical learning, and scholars worked to preserve and translate ancient texts. The Carolingian Renaissance also saw the development of a distinctive style of art and architecture that blended classical and Germanic influences. Overall, this period played an important role in shaping the cultural and intellectual landscape of Europe in the Middle Ages.