Fastré was born about 1275, the son of unknown parents. The place is not known.
His wife was Alix d'Antoing, who he married in ABT 1299. The place has not been found. Their two known children were Agnès (c1305-1369) and Marie (?-?).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | ABT 1275 |
|