Antoinette Au-Costé

• 
• Born in 1400

Parents

• Eustache Au-Costé (c. 1345 - ), écuyer, seigneur de Bouillancourt
• Jeanne de Boubers (1360 - ), dame de Saint-Riquier

Family

• Married with Jean L'Yver (1395 - ), seigneur de Bouillancourt, issuing
  • Jean
  • Renault (1430 - 1508)