Ermengarde (Irmengarde) Princess of Hesbaye

Ermengarde married Louis I "The Pious Emperor" of the Holy Roman Empire, son of Charlemagne (Charles the Great) Emperor of the Holy Roman Empire and Hildegard Empress of The Holy Roman Empire. (Louis I "The Pious Emperor" of the Holy Roman Empire was born in 778 in Casseneuil, Lot-Et-Garonne France, died on 20 Jun 840 in Near Ingelheim, Rhinehessen, Hesse Germany and was buried in Cathbedrale D'aachen, Aachen, Rheinland, Prussia.)