Hildegarde Princess of SWABIA 
Hildegarde Princess of was born in 0758 in Aachen, Rhineland, Prussia. She died in Thionville, Moselle. France.
They had a son named Louis I 'The Pious' Holy Roman Emperor.
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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.