SOURCE-17053Research NeededProbable
https://en.wikipedia.org/wiki/Isabel_de_Clare,_4th_Countess_of_Pembroke
Full citation
https://en.wikipedia.org/wiki/Isabel_de_Clare,_4th_Countess_of_Pembroke
https://en.wikipedia.org/wiki/Isabel_de_Clare,_4th_Countess_of_Pembroke