Hélie was the son of Hugues de Mareuil but his mother is unknown. The date and place of his birth have not been found.
His wife is not known. They were married, but the date and place have not been found. Their two known children were Hélie IV (?-?) and Raymond (?-?).
| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | seigneur de Mareuil et de Villebois |