Line of Ermengarde of Italy

(1) Lothair I, Holy Roman Emperor, born 795, died September 29th, 855. Son of Louis I, "the pious", and Ermengarde. Married Irmengarde and had daughter Ermengarde. (2) Ermengarde of Italy, born 832. Daughter of Lothair I and Irmengarde. Married Giselbert II de Hainault.