I have to wonder: If your Lady Aeducan was voiced by someone, who would be a fitting voice actress?
No question: Wendy Braun, who voices the Sultry Dorfette set that I chose for Lady A in DA: Origins 
www.imdb.com/name/nm0105876/ (She also voices Felsi & Hespith)
www.imdb.com/name/nm0105876/ (She also voices Felsi & Hespith)