Arnaud was the son of unknown parents. The date and place of his birth have not been found.
His wife was Philippe de Foix, who he married in 1262. The place has not been found. They had no known children.
| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | vicomte de Couserans | |||||
| Nobility Title | comte de Pailhars |