Isabel De Monthlery 
Isabel was born in 1040 in Montlhery,S-Oise,FRANCE. Isabel's father was Guy I , Lord Of Chateaufort Montlhery and her mother was Hodierne de Gometz-la-Ferte. Her paternal grandfather was Milon de Monteleherico; her maternal grandfather was Guillaume De Gometz-La-Ferte Bures. She had two brothers and a sister, named Milon , Viscount Of Troy, Guy II , Comte de Rochfort and Melisende Milicent. She was the second youngest of the four children.
Isabel and Joscelin I were married in a religious ceremony in 1065 in Montlhery,Seine-Et-Oise,FRANCE. They had a son named Miles.
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Children
Miles De Courtenay
Miles was born in 1069 in Courtenai,Galinois,FRANCE. He died after 1127 in FRANCE.
They had a son named Ranulph.