Hélissent was the daughter of Guillaume III de Garlande and Agnès de Crépy. The date and place of her birth have not been found.
Her husband was Simon de Mardilly, who she married in 1161. The place has not been found. They had no known children.
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Guillaume III de Garlande |
Guillaume II de Garlande |
Guillaume dit Adam de Garlande |
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Agnès de Crépy |
Thibaut II de Crépy |
Adam de Crépy |
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Élisabeth de Châtillon |
Henri I de Châtillon |
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