1. GUY¹ DE MONTHLHERY has an unknown birthdate.
Child:

+

2

i.

ISABEL2 DE MONTHLHERY, b. about 1050; d. about 1100; m. (MG-1) JOCELIN DE COURTENAY.

2. ISABEL² DE MONTHLHERY (Guy¹), daughter of (1) Guy¹ DE MONTHLHERY, was born between 1003/4 and 1065, and died between 1059 and 1175. She married (MG-1) JOCELIN DE COURTENAY.
Child: See (MG-1) Jocelin de COURTENAY