Thomas was the son of Philip FitzThomas but his mother is unknown. The date and place of his birth have not been found.
His wife was Mary FitzMaurice. They were married, but the date and place have not been found. Their four known children were sir rev. John FitzThomas (?->1541), Edmond FitzThomas (?-1503), Elizabeth FitzThomas (?-?) and Evelyn FitzThomas (?-?).
| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | knight of Glin 10° |