Mathieu was the son of unknown parents. The date and place of his birth have not been found.
His wife was Alix de Vienne. They were married, but the date and place have not been found. Their only known child was Henri (?-1396).
| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | seigneur de Rahon |
Note 1
son of Jean de Longwy, Seigneur de Rahon et de Chazeuil