Guillaume de Poitiers
seigneur de Saint-Vallier
- Born after 1268
- Deceased before 1315
Parents
- Aymar de Poitiers (1226 - 1277), chevalier, comte de Valentinois
- Alixente de Mercœur ( - 1286)
Family
- Married with Luce de Beaudiner, dame de Beaudiner, issuing
