Elizabeth/Isabel, daughter of Simon de Montfort, Seigneur of Montfort l'Amaury. [Burke's Peerage]
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He [Ralph de Toeni] m. Isabel or Elizabeth, daughter of Simon de Montfort, Seigneur of MONTFORT L'AMAURY (France) (a), by his 1st wife, said to be Isabel, daughter of Hugh BARDOUL, SEIGNEUR OF BROZES. He died 24 March, probably in 1101/2, and was buried at Conches. Isabel, after a long widowhood, repenting of the fatal wantonness to which she had been too much addicted in her youth, took the veil at the priory of Haute-BruyEre and lived praiseworthily in the fear of the Lord. [Complete Peerage XII/1:758-60, (transcribed by Dave Utzinger & myself)]
[a] Ralph obtained her as a reward for kidnapping by night his half-sister Agnes, daughter of Richard, Count of Evreux, and giving her in marriage to Simon