Charlemagne, Holy Roman Emperor UNKNOWN & Hildegarde Princess of SWABIA 
They had a son named Louis I 'The Pious' Holy Roman Emperor.
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Personal Details
Charlemagne, Holy Roman Emperor UNKNOWN
Charlemagne, Holy Roman Emperor was born in Ingelheim, Rhineland, Prussia. He died in Aix la Chapelle, Aachen, Rhineland, Prussia.
Hildegarde Princess of SWABIA
Hildegarde Princess of was born in 0758 in Aachen, Rhineland, Prussia. She died in Thionville, Moselle. France.
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Children
Louis I 'The Pious' Holy Roman Emperor UNKNOWN
Louis I 'The Pious' Holy Roman Emperor was born in August 0778 in Casseneuil, Lot-et-Garonne, France. He died in Near Mainz, Ingelheim, Hesse-Nassau, Prussia.