Guillaume Ier du Tertre
- Born in 1406 in Boursin, at château du Tertre
Parents
- Jean III du Tertre, écuyer, vicomte de Fiennes
- Jeanne de Bournonville
Family
- Married in 1420, with N de Licques
- Married in 1431, with Marguerite de Bernieulles, issuing
Occupations
- écuyer des ordonnances