Richard I of England allowed her lands and the earldom to pass to her granddaughter's husband Geoffrey Fitz Peter.

His first marriage was to Matilda, daughter of Robert Fitzwalter, a member of the Clare family and one of the leaders of the opposition to King John.

The king charged Geoffrey 20,000 marks, an unprecedented amount, for her marriage and inheritance.

[3] On his death, in a tournament in February 1216, Geoffrey was succeeded by his brother William FitzGeoffrey de Mandeville, 3rd Earl of Essex.

His widow Isabel was remarried to Hubert de Burgh, 1st Earl of Kent but died within weeks of the wedding.