Thierry was the son of Gérulf II but his mother is unknown. The date and place of his birth have not been found.
He died about 0959. The place is not known.
His wife is not known. They were married, but the date and place have not been found. Their two known children were NN (?-?) and Gérulf (?-?).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Death | ABT 0959 |
|
| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | FROM 0916 TO 0959 | comte en Frise |