Hildegard of Vinzgouw was an 8th-century Frankish queen who served as the consort of Charlemagne from approximately 771 until her death in 783. Born into a noble family of Frankish and Alemannian descent, she was the daughter of Count Gerold and Imma. During her marriage, she played a significant role in the royal administration, co-signing various charters and managing the imperial household. She was the mother of nine children, including the future emperor Louis the Pious.