Nielsen Hayden genealogy
Family: Louis I "The Pious", Holy Roman Emperor / Ermengarde (F5048)
m. Abt 794
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Male
Louis I "The Pious", Holy Roman Emperor
Birth Between Apr 778 and Aug 778 Chasseneuil-du-Poitou, Aquitaine, France 
Death 20 Jun 840 Petersaue, Ingelheim am Rhein, Rhineland Palatinate, Germany 
Burial Marriage Abt 794 [1, 2] Other Spouse Judith of Altdorf | F4384 Marriage Feb 819 Father Charlemagne | F2012 Group Sheet Mother Hildegarde of Vinzgouw | F2012 Group Sheet
Male
+ Lothair I, Emperor of the Romans
Birth 795 Death 28 Sep 855 Prum Abbey, Trier, Germany 
Burial Prum Abbey, Trier, Germany 
Spouse Ermengarde de Tours | F3174 Marriage Oct 821
Male
+ Louis "the German", King of Bavaria
Birth Abt 806 Death 28 Aug 876 Frankfurt-am-Main, Germany 
Burial Spouse Emma of Altdorf | F3728 Marriage 827
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Sources - [S142] Royal Ancestry: A Study in Colonial and Medieval Families by Douglas Richardson. Salt Lake City, 2013.
- [S91] The Henry Project: The Ancestors of King Henry II of England, by Stewart Baldwin, Todd A. Farmerie, and Peter Stewart.
- [S142] Royal Ancestry: A Study in Colonial and Medieval Families by Douglas Richardson. Salt Lake City, 2013.