Althæa was the daughter of Thesteus but her mother is unknown. The date and place of her birth have not been found.
Her husband was Œneus. They were married, but the date and place have not been found. Their only known child was Deianeira (?-?).
| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | princess of Pleuron |