Madelgarde was the daughter of unknown parents. The date and place of her birth have not been found.
Her husband was Charles I de France. They were married, but the date and place have not been found. Their only known child was Rothilde (0790-0852).
Note 1
fille de Madelbert de Lommois, comte de Hainaut et duc de Dentelin. En 802, Charlemagne l'épousa ou la prit pour concubine.