1 Ducs d'Aquitaine & Comtes de Poitou, Poitou, Gascogne, Auvergne, Etienne Pattou, 2008, p. 4
2 Foundation for Medieval Genealogy, Medlands. Gerard is shown as a child of his father's second marriage. However, this is chronologically impossible, as Mathilde's father was born c. 797 (such that Mathilde would have been roughly the same age as Gerard's elder brother Rainulf), and Gerard's eldest son, Geraud d'Aurillac, was born in 855. As such, Gerard is shown as also born of his father's first marriage.