Lady ( - )

1. Lady Isabella Marshal of Pembroke married Gilbert de Clare, 5th Earl of Hertford.

 

Gilbert de Clare, 5th Earl of Hertford and Lady Isabella Marshal of Pembroke had the following children:

 

Isabella de Clare (1226-1264). Isabella was born on 8 November 1226 in Gloucestershire. She married Robert de Brus, 5th Lord Annandale on 12 May 1240. She died on 10 July 1264.