Hildegarde von SWABIA 
Hildegarde von was born in 0758 in Aachen, Rheinland, Prussia. Hildegarde von's father was Gerold I Duke of SWABIA and her mother was Emma de ALEMANNIA. Her paternal grandfather was Gerold du MAYENNE; her maternal grandparents were Hnabi (Nebi) Duke of ALEMANNIA and Hersuinda UNKNOWN. She was an only child. She died in Tours, indre-et-Loire, France.
They had a son named Louis I 'The Pious' Holy Roman.
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Children
Louis I 'The Pious' Holy Roman EMPIRE
Louis I 'The Pious' Holy Roman was born in August 0778 in Casseneuil, France. He died in Ingelheim, Rhinehessen, Hessen, Prussia.