Guillemette was born about 1270, the daughter of unknown parents. The place is not known.
Her husband was Guillaume I Rogier. They were married, but the date and place have not been found. Their three known children were Guillaume II (c1289-?), Pierre (1291-1352) and Almodis Dauphine (?-?).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | ABT 1270 |
|