Gauthier was born about 1270, the son of unknown parents. The place is not known.
He died on 15 MAR 1311. The place is not known.
His wife was Jeanne de Châtillon-Porcéan, who he married in 1305. The place has not been found. Their only known child was Isabeau (c1306-1360).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | ABT 1270 |
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| Death | 15 MAR 1311 |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | comte de Brienne et de Lecce | |||||
| Nobility Title | duc d'Athènes |