Drogo illegitimate son of Frankish emperor Charlemagne by the concubine Regina, bishop of Metz (0801–0855) Parents Regina Charlemagne Children Siblings Hiltrude Ruodhaid Bertha Rotrude Gisela Theodoric Louis the Pious Hugh Ruothild Adelaide Charles the Younger Hildegard Lothair Adaltrude Pepin the Hunchback Theodrada Pepin of Italy
