(d) . . . The Countess, who had m. Roger, Earl of Hereford, in or bef. 1138, was widow of Walter de Mayenne in 1190/1. It was overlooked sub Hereford that according to Bracton, she was widow of William de Poitou in 1192. She dsp, and her moiety of the FitzJohn-Talbot inheritance then came to the Munchensys. [Complete Peerage IX:419 note (d)]