Research Notes:

Her marriage is confirmed by the charter dated 10 Feb 968 under which her daughter-in-law "Gerberga…Francorum regina" donated "alodo…Marsnam in comitatu Masaugo" to Reims Saint-Rémy, confirmed by "comitibus Emmone et Ansfrido", for the souls of "senioris nostri piæ memoriæ Gisleberti suique…patris…et matris Rageneri et Albradæ". The estimated birth date of her son Giselbert suggests that Alberada may have been her husband´s second wife, assuming that the charter which names his other wife Hersenda can be dated to soon after 886.... Another possibility is that both documents refer to the same person, one or other having incorrectly represented her name.

Maybe heiress of Hainaut. Guillaume de Jumièges describes how the wife of "Rainier au long cou" returned captured prisoners to Rollo and paid him gold, silver and all the taxes of the duchy, but does not name her. ¹