Hildegarde von SWABIA 
Hildegarde von was born in 0758 in Aachen, Rhineland, Prussia. Hildegarde von's father was Gerald I von VINZGAU and her mother was Imma von SWABIA. She was an only child. She died in Thionville, Moselle, France.
They had a son named Louis I, 'The Pious' Holy Roman.
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Children
Louis I, 'The Pious' Holy Roman Emperor
Louis I, 'The Pious' Holy Roman was born in August 0778 in Cassaneuil, LOot-et-garonne, France. He died in near Ingelheim, Rhinehessen, Prussia.