Research Notes:

"Mathilde et Alberada" are named as daughters of "Gerberga" in the Continuator of Flodoard, which specifies that Alberade was mother of Ermentrudis but does not name Alberada's husband. Two epitaphs in the church of Saint-Rémy, Marly relate to "Ragenolde" and "Albrada", although neither refers to each other. Bouchard highlights the absence of proof that the husband of Alberade of Lotharingia was Ragenold Comte de Roucy. The parentage of the couple's children is deduced by a combined reading of the different sources which refer to them. However, none of these sources name both parents, so the marriage of Alberade and Ragenold is not without all doubt. Alberade is named in a letter to Poppo of Stablo. ¹